Genetics of wisconsin fast plants
•Download as PPTX, PDF•
1 like•2,097 views
This formal lab report describes an experiment using pea plants to explore Mendelian genetics through observing the ratios of dominant and recessive traits across generations, finding a 3:1 ratio of purple to green stems in the F2 generation consistent with Mendel's laws of inheritance, and recording variation in traits like stem color and leaf hairs. Students grew successive generations of pea plants, tracked traits, and analyzed the data to understand inheritance patterns.
Report
Share
Report
Share
Recommended
Fast+plants+essay
The document summarizes an experiment conducted by a biology class to determine if the inheritance of anthocyanin (purple pigment) in Brassica Rapa follows Mendel's laws of inheritance. The class hypothesized that anthocyanin would be inherited as a dominant trait in a 3:1 ratio. The results were inconclusive, as the class data found a green trait to be dominant while combined data found purple to be dominant. Errors in planting, pollination and counting led to inconsistent results, preventing the class from supporting or refuting their hypothesis. Future experiments need more active involvement to limit errors and reach a clear conclusion.
Brassica Rapa Lab Report
This document describes an experiment to determine the inheritance pattern of stem color in Brassica Rapa plants. Purple and green stem colors were crossed in experimental and control groups to observe patterns through multiple generations. In the F1 generation, 16 plants had green stems and 3 had purple stems, inconsistent with simple dominance. Chi-square analysis rejected the hypotheses that parent plants were homozygous for green (GG) or heterozygous (Gg) and homozygous recessive (gg) for purple. The results support the hypothesis that some parent plants were heterozygous (Gg).
Gregor Mendel
Gregor Mendel was born in 1822 in Austria and spent much of his life conducting plant hybridization experiments with pea plants at an Augustinian monastery. Through carefully controlled breeding experiments over many years, Mendel discovered the laws of inheritance and was the first to hypothesize the concept of dominant and recessive genes. He showed that traits are passed from parents to offspring through discrete units that we now call genes. Mendel's work laid the foundation for modern genetics but was not widely recognized until after his death.
Mendel's laws of heredity part 3 (pp.258-259)-answer key
This document provides instructions for a biology class assignment on Mendel's laws of heredity. Students are asked to read about Mendel's experiments with pea plants and answer questions related to phenotypes, genotypes, monohybrid and dihybrid crosses. The questions cover true-breeding plants, dominant and recessive traits, homozygous and heterozygous genotypes, and Mendel's observations of offspring ratios in the F1 and F2 generations of his dihybrid crosses. Students are also asked to define key terms and reproduce a figure from their textbook.
Mendel's laws of heredity part 1 (pp.253-254) - answer key
This document provides instructions for a biology class assignment on Mendel's laws of heredity. Students are asked to complete a handout in their notebook investigating 17 vocabulary terms related to genetics and heredity. They are to read sections of their textbook on Gregor Mendel's experiments with garden peas and answer 6 questions about how he used controlled cross-fertilization to study the inheritance of traits. For homework, students must reproduce a figure from the textbook and study the vocabulary terms for an upcoming quiz.
Gregor mendel
Gregor Mendel was an Augustinian monk who conducted breeding experiments with pea plants in the 1850s and 1860s. He studied seven traits in peas and found that traits are passed to offspring through discrete "factors" (now called genes). Mendel discovered that these factors segregate and assort independently during reproduction, resulting in predictable inheritance patterns. His work established the foundations of genetics but was not widely accepted until the early 20th century.
E class genes
The document discusses floral identity genes in plants. It notes that floral identity genes include transcription factors that control the expression of other genes. Meristem identity genes belong to the MADS box gene family and are involved in organ identity. Key floral identity genes in Arabidopsis thaliana include APETALA1, APETALA2, APETALA3, PISTILLATA, and AGAMOUS. The ABC model of floral organ identity specifies sepals, petals, stamens and carpels based on the combinatorial activities of A, B, and C genes along with SEPALLATA genes.
Mendel
1. Gregor Mendel conducted experiments breeding pea plants in the 19th century to study inheritance. He found that traits are passed from parents to offspring through discrete factors (now known as genes) which segregate and assort independently.
2. Mendel's experiments showed that for a single trait with two variants (monohybrid cross), the offspring ratio is 3:1. For two independent traits (dihybrid cross), the ratio is 9:3:3:1.
3. Later researchers found exceptions to Mendel's laws, including incomplete dominance (where the offspring exhibits a blended phenotype between parents), epistasis (where one gene masks the expression of another), and multiple gene interactions.
Recommended
Fast+plants+essay
The document summarizes an experiment conducted by a biology class to determine if the inheritance of anthocyanin (purple pigment) in Brassica Rapa follows Mendel's laws of inheritance. The class hypothesized that anthocyanin would be inherited as a dominant trait in a 3:1 ratio. The results were inconclusive, as the class data found a green trait to be dominant while combined data found purple to be dominant. Errors in planting, pollination and counting led to inconsistent results, preventing the class from supporting or refuting their hypothesis. Future experiments need more active involvement to limit errors and reach a clear conclusion.
Brassica Rapa Lab Report
This document describes an experiment to determine the inheritance pattern of stem color in Brassica Rapa plants. Purple and green stem colors were crossed in experimental and control groups to observe patterns through multiple generations. In the F1 generation, 16 plants had green stems and 3 had purple stems, inconsistent with simple dominance. Chi-square analysis rejected the hypotheses that parent plants were homozygous for green (GG) or heterozygous (Gg) and homozygous recessive (gg) for purple. The results support the hypothesis that some parent plants were heterozygous (Gg).
Gregor Mendel
Gregor Mendel was born in 1822 in Austria and spent much of his life conducting plant hybridization experiments with pea plants at an Augustinian monastery. Through carefully controlled breeding experiments over many years, Mendel discovered the laws of inheritance and was the first to hypothesize the concept of dominant and recessive genes. He showed that traits are passed from parents to offspring through discrete units that we now call genes. Mendel's work laid the foundation for modern genetics but was not widely recognized until after his death.
Mendel's laws of heredity part 3 (pp.258-259)-answer key
This document provides instructions for a biology class assignment on Mendel's laws of heredity. Students are asked to read about Mendel's experiments with pea plants and answer questions related to phenotypes, genotypes, monohybrid and dihybrid crosses. The questions cover true-breeding plants, dominant and recessive traits, homozygous and heterozygous genotypes, and Mendel's observations of offspring ratios in the F1 and F2 generations of his dihybrid crosses. Students are also asked to define key terms and reproduce a figure from their textbook.
Mendel's laws of heredity part 1 (pp.253-254) - answer key
This document provides instructions for a biology class assignment on Mendel's laws of heredity. Students are asked to complete a handout in their notebook investigating 17 vocabulary terms related to genetics and heredity. They are to read sections of their textbook on Gregor Mendel's experiments with garden peas and answer 6 questions about how he used controlled cross-fertilization to study the inheritance of traits. For homework, students must reproduce a figure from the textbook and study the vocabulary terms for an upcoming quiz.
Gregor mendel
Gregor Mendel was an Augustinian monk who conducted breeding experiments with pea plants in the 1850s and 1860s. He studied seven traits in peas and found that traits are passed to offspring through discrete "factors" (now called genes). Mendel discovered that these factors segregate and assort independently during reproduction, resulting in predictable inheritance patterns. His work established the foundations of genetics but was not widely accepted until the early 20th century.
E class genes
The document discusses floral identity genes in plants. It notes that floral identity genes include transcription factors that control the expression of other genes. Meristem identity genes belong to the MADS box gene family and are involved in organ identity. Key floral identity genes in Arabidopsis thaliana include APETALA1, APETALA2, APETALA3, PISTILLATA, and AGAMOUS. The ABC model of floral organ identity specifies sepals, petals, stamens and carpels based on the combinatorial activities of A, B, and C genes along with SEPALLATA genes.
Mendel
1. Gregor Mendel conducted experiments breeding pea plants in the 19th century to study inheritance. He found that traits are passed from parents to offspring through discrete factors (now known as genes) which segregate and assort independently.
2. Mendel's experiments showed that for a single trait with two variants (monohybrid cross), the offspring ratio is 3:1. For two independent traits (dihybrid cross), the ratio is 9:3:3:1.
3. Later researchers found exceptions to Mendel's laws, including incomplete dominance (where the offspring exhibits a blended phenotype between parents), epistasis (where one gene masks the expression of another), and multiple gene interactions.
Mendel's experiment on hybridisation and monohybrid cross
Gregor Mendel conducted experiments on hybridization using pea plants from 1857-1865. He performed monohybrid crosses focusing on one trait at a time, such as seed shape, seed color, flower color, etc. The results showed that in F1 generations, the dominant trait was expressed in all offspring. In F2 generations, both dominant and recessive traits were expressed in a 3:1 ratio. From this, Mendel proposed two laws of inheritance - the Law of Dominance and the Law of Segregation. The Law of Dominance states the dominant trait masks the recessive trait in hybrids. The Law of Segregation explains the separation and transmission of traits from parents to offspring through inheritance factors we now
Mendel and genetics
Grade 8 Science (K-12)- Mendelian Genetics and Non-Mendelian with simple illustrations and brief concept presentation
B.Sc. Microb/Biotech II Cell biology and Genetics Unit 4 Mendelian Genetics
Gregor Mendel conducted experiments with pea plants between 1856-1863. He found that traits are passed from parents to offspring through "particles" now known as genes. Mendel developed two laws of inheritance: 1) The Law of Dominance states that in a cross between pure dominant and recessive traits, only the dominant trait will appear in the offspring. 2) The Law of Segregation states that genes separate during the formation of gametes, so offspring have an equal chance of inheriting either gene from each parent. Mendel's work laid the foundation for modern genetics although it was not widely recognized until the early 20th century.
genetics introduction - models of inheritance
1. The document discusses genetics concepts including genes, alleles, genotypes, phenotypes, Mendel's laws of inheritance, and models of inheritance.
2. It provides examples of Mendel's experiments with pea plants and dihybrid crosses, demonstrating dominant and recessive traits.
3. Different inheritance patterns are described such as complete dominance, albinism, PKU, and blood types. Pedigree analysis is also discussed.
The genetics eye color drosohila 15 pollock
- This document outlines a genetics experiment using Drosophila melanogaster to study eye color inheritance.
- Students will set up crosses between fly strains with different eye colors and analyze the results over multiple generations.
- In week 3, chromatography will be used to separate pterin eye pigments from fly strains, which will then be identified under UV light based on their fluorescent colors.
Trabajando con más de un gen color ojos drosophila
This document summarizes an experiment using Drosophila to study eye color inheritance. Crosses between white-eyed flies and wild type flies produced offspring with four eye colors - red, scarlet, brown, and white. This indicates two genes are involved. Further crosses found ratios consistent with one gene (brown) producing brown eyes and another (scarlet) producing scarlet eyes when mutated. However, statistical analysis rejected the hypothesis, likely because assumptions of equal viability were violated as double mutants are less competitive. Careful examination of assumptions is important in genetics experiments.
GENETIC TERMINOLOGY AND MENDELIAN GENETICS
MENDELE'S EXPERIMNENT AND TERMINOLOGY, BY MR. DINABANDHU BARAD, MSC TUTOR, DEPARTMENT OF PEDIATRIC, SUM NURSING COLLEGE, SIKSHA 'O' ANUSANDHAN DEEMED TO BE UNIVERSITY
Genetics 1 Mendel Notes
Gregor Mendel conducted experiments with pea plants in the 1860s to study inheritance patterns in offspring. He found that traits are determined by discrete factors (now known as genes) that are transmitted from parents to offspring. Mendel discovered that for each trait, there are two alleles - one dominant and one recessive. In the F1 generation, the dominant allele is expressed. In the F2 generation, the recessive allele reappears in approximately 25% of offspring due to independent assortment of alleles. Mendel's laws of inheritance formed the foundation of classical genetics.
Genetics
The document discusses genetics and Mendel's experiments. It provides an overview of Mendel's work with pea plants, the traits he studied, and how he discovered the laws of inheritance. It summarizes that Mendel found genes segregate and traits assort independently, with dominant traits masking recessive traits.
57 ch13mendel2008
Gregor Mendel conducted experiments in the mid-1800s using pea plants to study inheritance patterns of traits such as flower color, seed shape, and seed color. Through quantitative analysis and use of the scientific method, he discovered that traits are inherited as discrete units and can be dominant or recessive. His findings established the laws of segregation and independent assortment, which explained that alleles separate independently during gamete formation and that different genes assort independently. Mendel's work laid the foundation for modern genetics.
1. ABCDE flower model
The document discusses the ABCDE model of flower development and its utility. It begins by describing the original ABC model proposed in 1991 to explain floral organ development. It then provides details on the classical ABCDE model, including the gene classes that specify the identity of each floral whorl. The document discusses modifications to the model in different plant species. It also summarizes several case studies on using mutations in floral organ identity genes to develop traits like male sterility and novel flower forms with commercial value.
Mendelian genetics powerpoint massengale
1. Gregor Mendel was an Austrian monk who is considered the father of genetics. He studied inheritance of traits in pea plants between 1856-1863 and developed the laws of inheritance.
2. Mendel found that when he cross-bred pea plants with different traits, such as seed shape or color, the offspring retained traits from both parents. Through his experiments with over 28,000 pea plants, he developed the laws of inheritance.
3. Mendel's work established the foundations of classical genetics, including the laws of segregation and independent assortment. His work was not widely recognized until the early 20th century but he is now recognized as the founder of the modern science of genetics
Ch 11 intro mendelian genetics sp11
Gregor Mendel conducted experiments with pea plants to study heredity and inheritance of traits. He discovered that traits are passed from parents to offspring through discrete units called genes. Genes exist in different forms called alleles, which may be dominant or recessive. When dominant and recessive alleles are paired, the dominant allele will mask the expression of the recessive allele. Through his experiments, Mendel established the principles of segregation and independent assortment, which explain how genes are transmitted and combined during reproduction.
Flower morphology and molecular mechanism of flower development
The document describes the development of flowers in Arabidopsis thaliana. It discusses:
1) The ABC model of floral organ identity specification, which proposes that three classes of genes (A, B, and C) interact to specify the four types of floral organs in each whorl.
2) The model was later expanded to the ABCE model with the addition of E-function genes that are required together with the ABC genes to specify organ identity.
3) Most of the floral organ identity genes are MADS-box transcription factors that form protein complexes to regulate floral organ development.
B.sc. agri i pog unit 3 mendelian genetics
Gregor Mendel conducted experiments with pea plants in the 1850s and 1860s to develop the laws of inheritance. He found that when he cross-pollinated pea plants with different traits, the offspring exhibited traits of one parent or the other in predictable ratios. Mendel's work established the foundations of genetics and heredity, though it was not widely recognized until the early 20th century. He demonstrated that traits are passed from parents to offspring through discrete units that we now know as genes.
Geneticsstudent2007
The document provides definitions and explanations of key genetics vocabulary terms like genes, alleles, dominant, recessive, genotypes, phenotypes, Punnett squares, and more. It discusses Gregor Mendel's pioneering experiments with pea plants that laid the foundations of modern genetics, including his conclusions that heredity factors are individual units (genes) that segregate and assort independently. Sample genetics problems are also presented.
ubaid afzal
The ABC model of flower development describes the genetic mechanisms that establish floral organ identity. Studies in Arabidopsis thaliana and Antirrhinum majus in the early 1990s led to the isolation of floral organ-identity genes, known as MADS-box genes, and the establishment of the ABC model. The ABC model proposes that different combinations of the A, B, and C class floral organ-identity genes specify the four types of floral organs.
Structural and functional annotation of mads box gene in grape vines
This document summarizes research on MADS-box transcription factor genes in grapevine (Vitis vinifera). The researchers identified 90 functional MADS-box genes in the grapevine genome, including 37 that had not been identified previously. They grouped the genes into different classes (MIKC, MIKC*, Mα, Mγ) based on phylogenetic analysis. Several newly discovered grapevine genes did not have clear homologs in other plant species. The MADS-box genes were found to be distributed across 17 grapevine chromosomes. This study provides the most comprehensive analysis of MADS-box genes in grapevine to date.
Flowering in plants(Arabidopsis) ABC Model
Flowering in plants(Arabidopsis) ABC Model
My youtube videos:
https://youtu.be/9SxSpNEQj_g
https://youtu.be/-D6OGm8YbXc
Set of four genes class A, B & C are involved in giving identity of different whorls. 4 pathways are involved - Photoperiodism, autonomous pathway, vernalization & giberlleic acid
Mendel 151210153707
Gregor Mendel conducted experiments with pea plants to study inheritance of traits. In monohybrid crosses involving one trait like flower color, he found that one factor (red color) dominated the recessive trait (white color) in the offspring (F1 generation). When he allowed the F1 plants to self-pollinate, the F2 generation showed a 3:1 phenotypic ratio of the dominant to recessive trait. In dihybrid crosses involving two traits like seed shape and color, the F1 offspring showed intermediate phenotypes but the F2 generation demonstrated independent assortment and segregation of traits in a 9:3:3:1 ratio. Mendel's experiments formed the basis of classical genetics and her
Mendelian Genetics
Gregor Mendel conducted experiments with pea plants to study inheritance of traits. In monohybrid crosses involving one trait like flower color, he found that one factor (red color) dominated the recessive trait (white color) in the offspring (F1 generation). When the F1 plants were self-pollinated to produce F2 offspring, there was a 3:1 ratio of dominant to recessive traits. In dihybrid crosses involving two traits like seed shape and color, the F1 offspring exhibited dominant traits for both. The F2 offspring showed a 9:3:3:1 ratio for different combinations of traits. Mendel's experiments established basic principles of heredity and were the foundation of classical
Goal to help you link cell division to Mendelian genetics; show wit.pdf
Goal: to help you link cell division to Mendelian genetics; show with diagrams why/how
Mendel’s dihybrid cross produces a ratio of 9:3:3:1 among F2 progeny. The genes for Mendel’s
characters seed shape and seed color, are on different chromosomes. Each gene has two alleles.
Starting, as Mendel did, with “true breeding” parents, show in writing and as part of a diagram,
what their genotype is, the genotype of their gametes, the genotype of their progeny (the F1), the
genotypes of their progeny’s gametes, and the genotypes of the F2. Include statements about the
proportion of each kind of the genotypes you identify. To minimize the number of figures you
should draw, I suggest that you illustrate the following stages: Parents genotypes (as I did in
class, use one color for pollen donor (male function), another for plant fertilized by the pollen,
different chromosomes different sizes/shapes) Anaphase I of meiosis in parents Anaphase II of
meiosis in parents Gametes produced by meiosis in parents and their proportions. F1 genotypes
Anaphase I of meiosis in F1 Anaphase II of meiosis in F2 Gametes produced by meiosis in F2
and their proportions. F2 Genotypes and their proportions; do this with letters only, not pictures.
Solution
To start with we have homozygotic parents :
First parent: Round color seed (RR) and Yellow in color (YY) = Genotype : RRYY : Gametes
RY and RY
Second parent : wrinkled seed (rr) and green in colour (yy) = Genotype : rryy : Gametes ry and
ry
first offspring F1 = round and yellow RrYy
Gamtes of F1 = RY, Ry, rY, ry
Now crossing two individuals from F1 to obtain F2 generation
now to see the proportion of all the phenotypes:
Total number of F2 offspring Round and yellow = (RRYY) or (RrYy) or (RRYy) or (RrYY) = 9
Round and green = (RRyy) or (Rryy) = 3
Wrinkled and yellow = (rrYY) or (RRYy) = 3
Wrinkled and green = (rryy) = 1
Therefore the ratio is 9:3:3:1 in the F2 progeny.1st parent (RY)1st parent (RY)2nd parent
(ry)RrYyRrYy2nd parent (ry)RrYyRrYy.
More Related Content
What's hot
Mendel's experiment on hybridisation and monohybrid cross
Gregor Mendel conducted experiments on hybridization using pea plants from 1857-1865. He performed monohybrid crosses focusing on one trait at a time, such as seed shape, seed color, flower color, etc. The results showed that in F1 generations, the dominant trait was expressed in all offspring. In F2 generations, both dominant and recessive traits were expressed in a 3:1 ratio. From this, Mendel proposed two laws of inheritance - the Law of Dominance and the Law of Segregation. The Law of Dominance states the dominant trait masks the recessive trait in hybrids. The Law of Segregation explains the separation and transmission of traits from parents to offspring through inheritance factors we now
Mendel and genetics
Grade 8 Science (K-12)- Mendelian Genetics and Non-Mendelian with simple illustrations and brief concept presentation
B.Sc. Microb/Biotech II Cell biology and Genetics Unit 4 Mendelian Genetics
Gregor Mendel conducted experiments with pea plants between 1856-1863. He found that traits are passed from parents to offspring through "particles" now known as genes. Mendel developed two laws of inheritance: 1) The Law of Dominance states that in a cross between pure dominant and recessive traits, only the dominant trait will appear in the offspring. 2) The Law of Segregation states that genes separate during the formation of gametes, so offspring have an equal chance of inheriting either gene from each parent. Mendel's work laid the foundation for modern genetics although it was not widely recognized until the early 20th century.
genetics introduction - models of inheritance
1. The document discusses genetics concepts including genes, alleles, genotypes, phenotypes, Mendel's laws of inheritance, and models of inheritance.
2. It provides examples of Mendel's experiments with pea plants and dihybrid crosses, demonstrating dominant and recessive traits.
3. Different inheritance patterns are described such as complete dominance, albinism, PKU, and blood types. Pedigree analysis is also discussed.
The genetics eye color drosohila 15 pollock
- This document outlines a genetics experiment using Drosophila melanogaster to study eye color inheritance.
- Students will set up crosses between fly strains with different eye colors and analyze the results over multiple generations.
- In week 3, chromatography will be used to separate pterin eye pigments from fly strains, which will then be identified under UV light based on their fluorescent colors.
Trabajando con más de un gen color ojos drosophila
This document summarizes an experiment using Drosophila to study eye color inheritance. Crosses between white-eyed flies and wild type flies produced offspring with four eye colors - red, scarlet, brown, and white. This indicates two genes are involved. Further crosses found ratios consistent with one gene (brown) producing brown eyes and another (scarlet) producing scarlet eyes when mutated. However, statistical analysis rejected the hypothesis, likely because assumptions of equal viability were violated as double mutants are less competitive. Careful examination of assumptions is important in genetics experiments.
GENETIC TERMINOLOGY AND MENDELIAN GENETICS
MENDELE'S EXPERIMNENT AND TERMINOLOGY, BY MR. DINABANDHU BARAD, MSC TUTOR, DEPARTMENT OF PEDIATRIC, SUM NURSING COLLEGE, SIKSHA 'O' ANUSANDHAN DEEMED TO BE UNIVERSITY
Genetics 1 Mendel Notes
Gregor Mendel conducted experiments with pea plants in the 1860s to study inheritance patterns in offspring. He found that traits are determined by discrete factors (now known as genes) that are transmitted from parents to offspring. Mendel discovered that for each trait, there are two alleles - one dominant and one recessive. In the F1 generation, the dominant allele is expressed. In the F2 generation, the recessive allele reappears in approximately 25% of offspring due to independent assortment of alleles. Mendel's laws of inheritance formed the foundation of classical genetics.
Genetics
The document discusses genetics and Mendel's experiments. It provides an overview of Mendel's work with pea plants, the traits he studied, and how he discovered the laws of inheritance. It summarizes that Mendel found genes segregate and traits assort independently, with dominant traits masking recessive traits.
57 ch13mendel2008
Gregor Mendel conducted experiments in the mid-1800s using pea plants to study inheritance patterns of traits such as flower color, seed shape, and seed color. Through quantitative analysis and use of the scientific method, he discovered that traits are inherited as discrete units and can be dominant or recessive. His findings established the laws of segregation and independent assortment, which explained that alleles separate independently during gamete formation and that different genes assort independently. Mendel's work laid the foundation for modern genetics.
1. ABCDE flower model
The document discusses the ABCDE model of flower development and its utility. It begins by describing the original ABC model proposed in 1991 to explain floral organ development. It then provides details on the classical ABCDE model, including the gene classes that specify the identity of each floral whorl. The document discusses modifications to the model in different plant species. It also summarizes several case studies on using mutations in floral organ identity genes to develop traits like male sterility and novel flower forms with commercial value.
Mendelian genetics powerpoint massengale
1. Gregor Mendel was an Austrian monk who is considered the father of genetics. He studied inheritance of traits in pea plants between 1856-1863 and developed the laws of inheritance.
2. Mendel found that when he cross-bred pea plants with different traits, such as seed shape or color, the offspring retained traits from both parents. Through his experiments with over 28,000 pea plants, he developed the laws of inheritance.
3. Mendel's work established the foundations of classical genetics, including the laws of segregation and independent assortment. His work was not widely recognized until the early 20th century but he is now recognized as the founder of the modern science of genetics
Ch 11 intro mendelian genetics sp11
Gregor Mendel conducted experiments with pea plants to study heredity and inheritance of traits. He discovered that traits are passed from parents to offspring through discrete units called genes. Genes exist in different forms called alleles, which may be dominant or recessive. When dominant and recessive alleles are paired, the dominant allele will mask the expression of the recessive allele. Through his experiments, Mendel established the principles of segregation and independent assortment, which explain how genes are transmitted and combined during reproduction.
Flower morphology and molecular mechanism of flower development
The document describes the development of flowers in Arabidopsis thaliana. It discusses:
1) The ABC model of floral organ identity specification, which proposes that three classes of genes (A, B, and C) interact to specify the four types of floral organs in each whorl.
2) The model was later expanded to the ABCE model with the addition of E-function genes that are required together with the ABC genes to specify organ identity.
3) Most of the floral organ identity genes are MADS-box transcription factors that form protein complexes to regulate floral organ development.
B.sc. agri i pog unit 3 mendelian genetics
Gregor Mendel conducted experiments with pea plants in the 1850s and 1860s to develop the laws of inheritance. He found that when he cross-pollinated pea plants with different traits, the offspring exhibited traits of one parent or the other in predictable ratios. Mendel's work established the foundations of genetics and heredity, though it was not widely recognized until the early 20th century. He demonstrated that traits are passed from parents to offspring through discrete units that we now know as genes.
Geneticsstudent2007
The document provides definitions and explanations of key genetics vocabulary terms like genes, alleles, dominant, recessive, genotypes, phenotypes, Punnett squares, and more. It discusses Gregor Mendel's pioneering experiments with pea plants that laid the foundations of modern genetics, including his conclusions that heredity factors are individual units (genes) that segregate and assort independently. Sample genetics problems are also presented.
ubaid afzal
The ABC model of flower development describes the genetic mechanisms that establish floral organ identity. Studies in Arabidopsis thaliana and Antirrhinum majus in the early 1990s led to the isolation of floral organ-identity genes, known as MADS-box genes, and the establishment of the ABC model. The ABC model proposes that different combinations of the A, B, and C class floral organ-identity genes specify the four types of floral organs.
Structural and functional annotation of mads box gene in grape vines
This document summarizes research on MADS-box transcription factor genes in grapevine (Vitis vinifera). The researchers identified 90 functional MADS-box genes in the grapevine genome, including 37 that had not been identified previously. They grouped the genes into different classes (MIKC, MIKC*, Mα, Mγ) based on phylogenetic analysis. Several newly discovered grapevine genes did not have clear homologs in other plant species. The MADS-box genes were found to be distributed across 17 grapevine chromosomes. This study provides the most comprehensive analysis of MADS-box genes in grapevine to date.
Flowering in plants(Arabidopsis) ABC Model
Flowering in plants(Arabidopsis) ABC Model
My youtube videos:
https://youtu.be/9SxSpNEQj_g
https://youtu.be/-D6OGm8YbXc
Set of four genes class A, B & C are involved in giving identity of different whorls. 4 pathways are involved - Photoperiodism, autonomous pathway, vernalization & giberlleic acid
What's hot (19)
Mendel's experiment on hybridisation and monohybrid cross
Mendel's experiment on hybridisation and monohybrid cross
B.Sc. Microb/Biotech II Cell biology and Genetics Unit 4 Mendelian Genetics
B.Sc. Microb/Biotech II Cell biology and Genetics Unit 4 Mendelian Genetics
Trabajando con más de un gen color ojos drosophila
Trabajando con más de un gen color ojos drosophila
Flower morphology and molecular mechanism of flower development
Flower morphology and molecular mechanism of flower development
Structural and functional annotation of mads box gene in grape vines
Structural and functional annotation of mads box gene in grape vines
Similar to Genetics of wisconsin fast plants
Mendel 151210153707
Gregor Mendel conducted experiments with pea plants to study inheritance of traits. In monohybrid crosses involving one trait like flower color, he found that one factor (red color) dominated the recessive trait (white color) in the offspring (F1 generation). When he allowed the F1 plants to self-pollinate, the F2 generation showed a 3:1 phenotypic ratio of the dominant to recessive trait. In dihybrid crosses involving two traits like seed shape and color, the F1 offspring showed intermediate phenotypes but the F2 generation demonstrated independent assortment and segregation of traits in a 9:3:3:1 ratio. Mendel's experiments formed the basis of classical genetics and her
Mendelian Genetics
Gregor Mendel conducted experiments with pea plants to study inheritance of traits. In monohybrid crosses involving one trait like flower color, he found that one factor (red color) dominated the recessive trait (white color) in the offspring (F1 generation). When the F1 plants were self-pollinated to produce F2 offspring, there was a 3:1 ratio of dominant to recessive traits. In dihybrid crosses involving two traits like seed shape and color, the F1 offspring exhibited dominant traits for both. The F2 offspring showed a 9:3:3:1 ratio for different combinations of traits. Mendel's experiments established basic principles of heredity and were the foundation of classical
Goal to help you link cell division to Mendelian genetics; show wit.pdf
Goal: to help you link cell division to Mendelian genetics; show with diagrams why/how
Mendel’s dihybrid cross produces a ratio of 9:3:3:1 among F2 progeny. The genes for Mendel’s
characters seed shape and seed color, are on different chromosomes. Each gene has two alleles.
Starting, as Mendel did, with “true breeding” parents, show in writing and as part of a diagram,
what their genotype is, the genotype of their gametes, the genotype of their progeny (the F1), the
genotypes of their progeny’s gametes, and the genotypes of the F2. Include statements about the
proportion of each kind of the genotypes you identify. To minimize the number of figures you
should draw, I suggest that you illustrate the following stages: Parents genotypes (as I did in
class, use one color for pollen donor (male function), another for plant fertilized by the pollen,
different chromosomes different sizes/shapes) Anaphase I of meiosis in parents Anaphase II of
meiosis in parents Gametes produced by meiosis in parents and their proportions. F1 genotypes
Anaphase I of meiosis in F1 Anaphase II of meiosis in F2 Gametes produced by meiosis in F2
and their proportions. F2 Genotypes and their proportions; do this with letters only, not pictures.
Solution
To start with we have homozygotic parents :
First parent: Round color seed (RR) and Yellow in color (YY) = Genotype : RRYY : Gametes
RY and RY
Second parent : wrinkled seed (rr) and green in colour (yy) = Genotype : rryy : Gametes ry and
ry
first offspring F1 = round and yellow RrYy
Gamtes of F1 = RY, Ry, rY, ry
Now crossing two individuals from F1 to obtain F2 generation
now to see the proportion of all the phenotypes:
Total number of F2 offspring Round and yellow = (RRYY) or (RrYy) or (RRYy) or (RrYY) = 9
Round and green = (RRyy) or (Rryy) = 3
Wrinkled and yellow = (rrYY) or (RRYy) = 3
Wrinkled and green = (rryy) = 1
Therefore the ratio is 9:3:3:1 in the F2 progeny.1st parent (RY)1st parent (RY)2nd parent
(ry)RrYyRrYy2nd parent (ry)RrYyRrYy.
Chapter Eleven- Intro to Genetics
1. Gregor Mendel was an Austrian monk who studied inheritance patterns in pea plants and is considered the founder of genetics.
2. He conducted breeding experiments with pea plants involving both self-pollination and cross-pollination to study inherited traits like plant height, seed texture, flower color and more.
3. Through his experiments, Mendel discovered that traits are passed from parents to offspring through discrete units later known as genes, and that some genes are dominant while others are recessive.
Mendelian genetics lecture quiz
This document provides an overview of Gregor Mendel's experiments with pea plants and the principles of heredity and genetics that he discovered. It discusses Mendel's work crossing pea plants with different traits, such as flower color, and recording the results in subsequent generations. His experiments showed that traits are inherited in discrete units (now known as genes) and follow predictable patterns, such as the 3:1 ratio he observed for dominant and recessive traits in the F2 generation of a monohybrid cross. The document also covers Mendel's principle of independent assortment observed in dihybrid crosses.
please answer all questions to the activites- The study of genetics an.docx
please answer all questions to the activites.
The study of genetics and inheritance is concerned with understanding the biological properties that are transmitted from parent to offspring. Mendel's work resulted in the two laws of inheritance: (1) the Law of Segregation and (2) the Law of Independent Assortment. Exercise 1- Law of Segregation COVh A In Mendel's experiments in pea plants, he observed seven traits of the plants including height, pea shape, pea color and observed that these traits had two easily recognizable forms (tall versus short plants, round versus wrinkled peas, and yellow versus green peas). Each of these variant forms of the same gene (tall vs. short) we now referred to as alleles. Mendel found that when studying crosses of plants and observing one trait (plant height) using monohybrid crosses, the alleles of the gene segregate from one another when gametes are formed. The law of segregation results from the separation of homologous chromosomes and, thus, alleles during meiosis. The subsequent random fertilization of gametes results in the predicted ratios observed in monohybrid crosses. In a monohybrid cross, one pair of alleles is studied. If both parents are homozygous, with one parent homozygous dominant and the other parent homozygous recessive, the first generation will be heterozygous exhibiting the dominant phenotype. As Mendel demonstrated, 75% of the second generation (F2) offspring will have the dominant phenotype and 25% the recessive phenotype (a 3:1 ratio). This prediction can be validated using the chi-square statistical test. In corn (Zea mays), for our purposes, the inheritance of the seed (kernel) color can be considered to be a single gene, with one pair of alleles (purple vs. yellow). The purple color allele is dominant, and the yellow allele is recessive. Note: For genetic accuracy, the color-determining pigments are found in the aleurone coating of the endosperm, which can be colorless, purple, or red, and in the endosperm proper, which is yellow or white. Color production is subject to epistasis and modification by other genes. In this exercise you will collect data from the second-generation ( F 2 ) offspring of a monohybrid cross. P 1 Parental Generation Procedure: 1. Obtain one (1) ear of monohybrid corn per group. 2. Count at least 20 seeds total on the ear of corn, recording how many of the seeds are purple and how many of the seeds are yellow in Table 1 below. 3. Record your totals on the classroom whiteboard. 4. You can now test the validity of your (THE CLASS) data using the chi-square test. The chi-square is a relatively simple mathematical calculation that can determine how well the observed experimental results (the actual count) correspond to the theoretical prediction (the expected results). The formula for the chi-square calculation is: x 2 = e 1 ( o 1 e 1 ) 2 + e 2 ( o 2 e 2 ) 2 = x 2 = the symbol for the term, chi-square 0 = observed count (number) ( o 1 = the purple seeds, o 2 = ye.
14 mendel text
The document summarizes Gregor Mendel's experiments with pea plants that established the fundamental principles of heredity and genetics. Through breeding and tracking inherited traits in pea plants over multiple generations, Mendel discovered that traits are passed from parents to offspring through discrete units (genes) that segregate and assort independently. Mendel's work formed the basis of classical genetics and established the laws of segregation and independent assortment.
Chapter 11: Introduction to Genetics
Gregor Mendel experimented with pea plants and discovered the principles of inheritance, including dominance and segregation. He found that traits are determined by discrete factors, now known as genes, which are inherited from parents. Offspring receive one of each pair of genes from their parents. During meiosis, homologous chromosomes pair up and genes segregate so each gamete receives one of each gene. This ensures genetic variation in offspring.
Chapter 4. Genetics and Evolution.pptx
Genetics
-. Basic Principles of Mendelian Genetics and Patterns of Inheritance
-Molecular Genetics & Inheritance
-. Protein Synthesis
- Mutations
-. Manipulation of DNA
-. ABO blood groups and Rh Factors
Evolution
- Theories on the origin of life on Earth
-. Theories of Evolution
Law of segregation
Mendel conducted experiments with pea plants, observing seven characteristics with distinct variations. He cross-pollinated purebred plants with different characteristics, such as green and yellow pod plants. The resulting F1 generation always expressed one characteristic, such as green pods. When self-pollinating the F1 plants, the F2 generation expressed characteristics in predictable ratios, such as 3 green pods to 1 yellow pod. This supported Mendel's theory that inherited characteristics are determined by discrete units (genes and alleles) that segregate and are transmitted from parents to offspring.
EXERCISE 12GENETIC INHERITANCE PROBLEMSOBJECTIVESNote
EXERCISE 12
GENETIC INHERITANCE PROBLEMS
OBJECTIVES
Note:
Alleles
locus
P 1 generation
F1 generation
Note:
Genetics Inheritance Problems
Instructions: Work in lab groups to count kernels and solve the genetics problems. Materials: Genetic corn cobs with kernels, calculator
1. CROSS # 1: corn kernels (seeds)
purple
yellow
F1 plants that all had purple corn kernels
Po generation:
Genotype F1
The F1 corn plants with the purple corn kernels were interbred
2
F1 cross:
F2 generation:
expectedF2
expected percentage
Procedure:The F2 container in the lab labeled F2 of
Cross 1 observed
TABLE 1: Phenotypes of Corn Kernels for F2 Generation of Cross 1 (observed data)
6
4
2
2
TABLE 2: Observed and expected data for F2 generation of Cross 1
2
2. CROSS # 2: F1 purple corn kernels with yellow corn kernels.
F
F1
F2 generation:
expectedF2
expected percentage
Procedure: of cross 2.
observed
TABLE 3: Phenotypes of Corn Kernels for F2 Generation of Cross 2 (observed data)
6
4
2
observed expected.
TABLE 4: Observed and expected data for F2 generation of Cross 2
3. CROSS # 3: purple, wrinkled seeds
(kernels) yellow, smooth seeds (kernels)
purple and smooth.
Write in the parents genotypes (Po generation) and the genotype of their
Po generation:
F1 generation:
2
F1 cross:
F2 generation:
expectedF2
Procedure:The F2 container in the lab labeled F2 of
Cross 3.t en observed
TABLE 5: Phenotypes of Corn Kernels for F2 Generation of Cross 3 (observed data)
2
4
6
9
TABLE 6: Number observed and expected data for F2 generation of Cross 3
TABLE 7: Percent observed and expected data for F2 generation of Cross 3
P ×
P ×
F
Lab Exercise 12
If two wavy-haired parents had twelve children, how many of their offspring would be expected to be curly?Wavy?Straight?
5. A woman with normal vision, whose father was color-blind, married a man who had normal vision. The genes for normal vision and color-blind vision are on the X chromosome. The color
blind characteristic is recessive. What are the expected F1 genotypes and F1 phenotypic ratio from this mating?
P1 cross:
Gametes: Punnett Square:
F1 genotypes:
F1 phenotypic ratio:
Questions:
1. State Mendel's First Law. What part of meiosis is the basis for this law?
2. State Mendel's Second Law. What part of the meiotic process is the basis for this law?
287
Lab Exercise 12
3. Why do we use Punnett squares to solve genetics problems?
4. All of the genetics problems in this lab exercise involved monogenic traits. In reality however, most genetic traits are polygenic. Compare monogenic traits with polygenic traits. Which traits are easier ...
Genetics And Mendel 1201627175681907 2
Gregor Mendel studied the inheritance of physical traits in pea plants in the 19th century. He found that traits are controlled by discrete factors, now known as genes, that are passed from parents to offspring. These genes exist in different forms called alleles, and some alleles are dominant while others are recessive. In his experiments, Mendel found that when he cross-pollinated pea plants with different traits, only one trait, the dominant one, appeared in the first generation of offspring. However, when he had that first generation self-pollinate, on average three-quarters displayed the dominant trait while one-quarter displayed the recessive trait. Mendel's work established the foundations of genetics.
Sci 9A Lesson 2 Mar 16 - Introduction to Genetics (Part 2)
This document provides an introduction and review of genetics concepts. It discusses Gregor Mendel's work with pea plants and the inheritance of traits. Key terms like genotype, phenotype, dominant, recessive, and Punnett squares are defined. Students are given practice problems involving Punnett squares and homework assignments involving genetics worksheets.
Hereditary patterns
The document discusses heritable variation and patterns of inheritance. It describes how traits are usually inherited in particular patterns from parents to offspring. Gregor Mendel performed experiments with pea plants to analyze inheritance patterns and deduce fundamental genetic principles. Through his work, he developed hypotheses about alternative gene forms (alleles), genetic makeup, gamete formation, and dominant and recessive alleles.
mendelian genetics.ppt
Mendel observed patterns of inheritance in pea plants through experimentation with traits such as flower color, seed shape, and pod color. His work provided evidence that heritable traits are specified by discrete units (later identified as genes) that are transmitted from parents to offspring in predictable patterns. Through experiments involving one trait (monohybrid crosses) and two traits (dihybrid crosses), Mendel deduced that genes assort and transmit independently during gamete formation and fertilization. Later work showed that traits are influenced not only by genes but also environmental factors and that variations exist in patterns of gene expression and dominance.
Biology Form 5 Chapter 5 : 5.1 Inheritance
- Gregor Mendel conducted experiments with pea plants in the 1860s and is considered the founder of genetics. Through his experiments, he discovered the fundamental laws of inheritance.
- Mendel determined that traits are passed from parents to offspring through "factors" that we now know as genes. His laws of inheritance include dominance, segregation, and independent assortment.
- Mendel's work formed the basis for understanding how traits are inherited and laid the foundation for modern genetics.
MENDEL.pptx
The document provides instructions for classroom behavior and participation. It then presents a genetic code breaking activity where students decode terms by writing the letter after each letter. Finally, it discusses monohybrid crosses using Punnett squares to predict genotypes and phenotypes from parental genotypes.
09 lecture presentation
Gregor Mendel conducted experiments with pea plants in the 1860s and was the first to deduce the fundamental principles of genetics and heredity. Through his work with monohybrid and dihybrid crosses, Mendel discovered that traits are transmitted from parents to offspring through discrete units (now known as genes) which segregate and assort independently during reproduction. His findings established the basic principles of inheritance and provided the foundation for modern genetics.
Mendel & Heredity
Gregor Mendel conducted experiments with pea plants to study heredity. He found that pea plants have distinct traits that are inherited, such as flower color. Through controlled breeding experiments of pea plants with different traits, Mendel discovered that traits are passed from parents to offspring through discrete units (now called genes). His experiments showed that for many traits, one gene variant (allele) is dominant and will be expressed over another recessive allele. Mendel's work established the foundations of classical genetics and heredity through his laws of segregation and independent assortment.
Similar to Genetics of wisconsin fast plants (19)
Goal to help you link cell division to Mendelian genetics; show wit.pdf
Goal to help you link cell division to Mendelian genetics; show wit.pdf
please answer all questions to the activites- The study of genetics an.docx
please answer all questions to the activites- The study of genetics an.docx
EXERCISE 12GENETIC INHERITANCE PROBLEMSOBJECTIVESNote
EXERCISE 12GENETIC INHERITANCE PROBLEMSOBJECTIVESNote
Sci 9A Lesson 2 Mar 16 - Introduction to Genetics (Part 2)
Sci 9A Lesson 2 Mar 16 - Introduction to Genetics (Part 2)
Recently uploaded
DECLARATION OF HELSINKI - History and principles
This SlideShare presentation provides a comprehensive overview of the Declaration of Helsinki, a foundational document outlining ethical guidelines for conducting medical research involving human subjects.
Does Over-Masturbation Contribute to Chronic Prostatitis.pptx
In some case, your chronic prostatitis may be related to over-masturbation. Generally, natural medicine Diuretic and Anti-inflammatory Pill can help mee get a cure.
Post-Menstrual Smell- When to Suspect Vaginitis.pptx
Do you have abnormal smell after periods? It may be vaginitis. Do not worry, herbal medicine Fuyan Pill can help you get a cure.
MERCURY GROUP.BHMS.MATERIA MEDICA.HOMOEOPATHY
Mercurius is named after the roman god mercurius, the god of trade and science. The planet mercurius is named after the same god. Mercurius is sometimes called hydrargyrum, means ‘watery silver’. Its shine and colour are very similar to silver, but mercury is a fluid at room temperatures. The name quick silver is a translation of hydrargyrum, where the word quick describes its tendency to scatter away in all directions.
The droplets have a tendency to conglomerate to one big mass, but on being shaken they fall apart into countless little droplets again. It is used to ignite explosives, like mercury fulminate, the explosive character is one of its general themes.
Pharmacology of 5-hydroxytryptamine and Antagonist
5-hydroxytryptamine or 5-HT or Serotonin is a neurotransmitter that serves a range of roles in the human body. It is sometimes referred to as the happy chemical since it promotes overall well-being and happiness.
It is mostly found in the brain, intestines, and blood platelets.
5-HT is utilised to transport messages between nerve cells, is known to be involved in smooth muscle contraction, and adds to overall well-being and pleasure, among other benefits. 5-HT regulates the body's sleep-wake cycles and internal clock by acting as a precursor to melatonin.
It is hypothesised to regulate hunger, emotions, motor, cognitive, and autonomic processes.
Ketone bodies and metabolism-biochemistry
This slide consists of all the topics of ketone . This can be used for exam purpose for writing about Diabetic keto acidosis etc . Thank you
Efficacy of Avartana Sneha in Ayurveda
Avartana Sneha is a unique method of Preparation of Sneha Kalpana in Ayurveda, mainly it is indicated for the Vataja rogas.
June 2024 Oncology Cartoons By Dr Kanhu Charan Patro
une 2024 Oncology Cartoons By Dr Kanhu Charan Patro
Acute Gout Care & Urate Lowering Therapy .pdf
In this document , the management of acute gout attacks and a description of urate lowering therapy is mentioned.
vonoprazan A novel drug for GERD presentation
Vonoprazan, a new potassium acid channel blocker used in the conditions of GERD and gastric ulcer, duodenal ulcer ....
share - Lions, tigers, AI and health misinformation, oh my!.pptx
• Pitfalls and pivots needed to use AI effectively in public health
• Evidence-based strategies to address health misinformation effectively
• Building trust with communities online and offline
• Equipping health professionals to address questions, concerns and health misinformation
• Assessing risk and mitigating harm from adverse health narratives in communities, health workforce and health system
Top Travel Vaccinations in Manchester
Travel vaccination in Manchester offers comprehensive immunization services for individuals planning international trips. Expert healthcare providers administer vaccines tailored to your destination, ensuring you stay protected against various diseases. Conveniently located clinics and flexible appointment options make it easy to get the necessary shots before your journey. Stay healthy and travel with confidence by getting vaccinated in Manchester. Visit us: www.nxhealthcare.co.uk
8 Surprising Reasons To Meditate 40 Minutes A Day That Can Change Your Life.pptx
8 Surprising Reasons To Meditate 40 Minutes A Day That Can Change Your Life.pptxHolistified Wellness
We’re talking about Vedic Meditation, a form of meditation that has been around for at least 5,000 years. Back then, the people who lived in the Indus Valley, now known as India and Pakistan, practised meditation as a fundamental part of daily life. This knowledge that has given us yoga and Ayurveda, was known as Veda, hence the name Vedic. And though there are some written records, the practice has been passed down verbally from generation to generation.NARCOTICS- POLICY AND PROCEDURES FOR ITS USE
This document outlines policies and procedures for handling narcotic and controlled drugs in NABH accredited hospitals.
Histololgy of Female Reproductive System.pptx
Dive into an in-depth exploration of the histological structure of female reproductive system with this comprehensive lecture. Presented by Dr. Ayesha Irfan, Assistant Professor of Anatomy, this presentation covers the Gross anatomy and functional histology of the female reproductive organs. Ideal for students, educators, and anyone interested in medical science, this lecture provides clear explanations, detailed diagrams, and valuable insights into female reproductive system. Enhance your knowledge and understanding of this essential aspect of human biology.
CLEAR ALIGNER THERAPY IN ORTHODONTICS .pptx
Dr. ZANAB FARHEEN FAYAZ ,MDS(ORTHODONTICS & DENTOFACIAL ORTHOPEDICS ).
Clinic ^%[+27633867063*Abortion Pills For Sale In Tembisa Central
Clinic ^%[+27633867063*Abortion Pills For Sale In Tembisa Central Clinic ^%[+27633867063*Abortion Pills For Sale In Tembisa CentralClinic ^%[+27633867063*Abortion Pills For Sale In Tembisa CentralClinic ^%[+27633867063*Abortion Pills For Sale In Tembisa CentralClinic ^%[+27633867063*Abortion Pills For Sale In Tembisa Central
Recently uploaded (20)
Does Over-Masturbation Contribute to Chronic Prostatitis.pptx
Does Over-Masturbation Contribute to Chronic Prostatitis.pptx
Post-Menstrual Smell- When to Suspect Vaginitis.pptx
Post-Menstrual Smell- When to Suspect Vaginitis.pptx
Pharmacology of 5-hydroxytryptamine and Antagonist
Pharmacology of 5-hydroxytryptamine and Antagonist
June 2024 Oncology Cartoons By Dr Kanhu Charan Patro
June 2024 Oncology Cartoons By Dr Kanhu Charan Patro
share - Lions, tigers, AI and health misinformation, oh my!.pptx
share - Lions, tigers, AI and health misinformation, oh my!.pptx
8 Surprising Reasons To Meditate 40 Minutes A Day That Can Change Your Life.pptx
8 Surprising Reasons To Meditate 40 Minutes A Day That Can Change Your Life.pptx
Clinic ^%[+27633867063*Abortion Pills For Sale In Tembisa Central
Clinic ^%[+27633867063*Abortion Pills For Sale In Tembisa Central
Genetics of wisconsin fast plants
- 1. Formal Lab Report 7/8 Grades Ashbrook Independent School
- 2. Explore the concept of variation Follow three generations of a species Cross homozygous dominant and recessive parents Cross F1 generation Find ratios in F1 and F2 generations
- 3. Easy to use indoors Uses small amount of space Grows quickly Distinctive traits Ideal for Mendelian genetics
- 4. Lighting system Quads with plants
- 5. Grow seeds on paper towels in petri dishes. Grow F1 first, then grow F2. Keep petri dishes in 2 cm of water. Allow growth for 4-5 days. Count the purple and green stems. Petri dishes with seedlings.
- 6. Count leaf hairs on margin of first true leaf Collect class data Create a histogram of hair variation Also, record parent stem colors Leaf hairs on margin
- 7. Parent Stem Colors P1 P2 Generation Generation Stem Color No. Plants Class No. Plants Class Average Average Non-purple (anl) Purple (ANL) Ratio ANL:anl
- 8. F1 and F2 Stem Colors F1 Generation F2 Generation Color Stem No. Plants Class Average No. Plants Class Average Non-purple anl Purple ANL Ratio ANL:anl
- 9. Number of Leaf Hairs on P1 7 6 5 Number of Plants 4 3 2 1 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Number of Leaf Hairs
- 10. Parents A (ANL) A (ANL) a (anl) Aa Aa a (anl) Aa Aa F1 Genotype = Aa F1 Phenotype = purple stem Note: ANL= anthocyanin anl=anthocyaninless
- 11. F1 Parents A a A AA Aa a Aa aa F2 Genotype = 1:2:1 = AA:Aa:aa F2 Phenotype = 3 purple stem : 1 green stem
- 12. After examining the first generation parents and their offspring, what can you conclude about the second generation (F1)? What are the dominant and recessive stem colors? How did you determine which stem color trait was dominant? Did this experiment demonstrate Mendel’s 3:1 ratio? Which generation showed this ratio? How did the F2 generation compare to the original parent generation? Describe the variation in plant hairs.