SCI 9 Lesson 2 Mar 17 - Introduction to Genetics (2)msoonscience
This document provides an introduction and review of genetics concepts for students. It includes definitions of key genetics vocabulary. It discusses Mendel's experiments with pea plants and the principles he developed including dominant and recessive traits, inheritance of traits from parents, and using Punnett squares to determine probability of offspring traits. It provides examples of problems involving incomplete dominance and probability. It assigns homework to complete practice problems and review class notes, and notifies students there is no homework over spring break.
This document provides definitions and explanations of key genetics concepts including:
1. Pedigrees are used to show ancestral relationships and transmission of genetic traits over generations.
2. A proband is the individual in a pedigree that prompted its construction.
3. Mendel's laws of segregation and independent assortment describe how alleles separate and assort independently during gamete formation and fertilization.
Genetics- A geneticist is studying two genes- Each gene can be either.pdfaoneelectronices
Genetics: A geneticist is studying two genes. Each gene can be either dominant or recessive. A
sample of 100 individuals is categorized as follows. Write your answer as a fraction or a decimal,
rounded to four decimal places. (a) What is the probability that in a randomly sampled
individual, gene 1 is dominant? (b) What is the probability that in a randomly sampled
individual, gene 2 is dominant? (c) Given that gene. I is dominant, what is the probability that
gene 2 is dominant? (d) Two genes are sald to be in linkage equilibrium if the event that gene I is
dominant is independent of the event that gene 2 is dominant. Are these genes in linkage
equilibrium? Part 1 of 4 The probability that gene 1 is dominant in a randomly sampied
individual is Part 2 of 4 The probability that gene 2 is dominant in a randomly sampled
individual is Part: 2/4 Part 3 of 4 The probability that gene 2 is dominant given that gene I is
dominant is.
This document discusses genetic inheritance and autosomal recessive disorders. It explains that if both parents carry a mutation for an autosomal recessive gene, their children have a 25% chance of inheriting both copies of the mutated gene and developing the associated disease. The rest of the children would either be carriers with one normal and one mutated copy of the gene, or be completely normal with two normal copies. It promotes an online dating service that aims to help people find genetically compatible partners to reduce risks of passing on genetic disorders.
This document defines genetic terms and concepts related to single gene disorders and Mendelian inheritance patterns. It discusses alleles, genotypes, phenotypes, dominance, recessiveness, and other basic concepts. It then describes different inheritance patterns including autosomal dominant, autosomal recessive, X-linked, mitochondrial, and triplet repeat disorders. It provides examples of pedigrees that illustrate these patterns. It also discusses risk calculations and the Hardy-Weinberg principle for determining genotype and allele frequencies in a population.
This document discusses several key concepts for analyzing inheritance patterns from pedigrees:
1. It describes modes of inheritance like dominant, recessive, sex-linked, mitochondrial, and maternal effects.
2. Rules are provided for determining genotypes of individuals in dominant and recessive pedigrees, including outsider rules.
3. Methods are described for calculating probabilities of offspring phenotypes given parental genotypes using Mendelian genetics.
Heredity, Mendelian ways of inheritanceVeronique Nas
The document discusses autosomal dominant inheritance. It explains that with autosomal dominant inheritance, if a woman has a mutated gene causing a disease and passes that gene onto her child, the child will have the disease even if the father contributes a healthy gene, because the mutated gene is dominant. The child has a 50% chance of inheriting the mutated gene from the mother and developing the disease.
This document contains 9 problems regarding polygenic inheritance, sex-linked genes, Y-linked genes, sex-influenced traits, sex-limited traits, and pedigree analysis. The problems involve determining genotypes and phenotypes from genetic crosses and family pedigrees related to traits such as kernel color, color vision, baldness, feathering, and dental abnormalities. The student is asked to show work and provide boxed final answers.
SCI 9 Lesson 2 Mar 17 - Introduction to Genetics (2)msoonscience
This document provides an introduction and review of genetics concepts for students. It includes definitions of key genetics vocabulary. It discusses Mendel's experiments with pea plants and the principles he developed including dominant and recessive traits, inheritance of traits from parents, and using Punnett squares to determine probability of offspring traits. It provides examples of problems involving incomplete dominance and probability. It assigns homework to complete practice problems and review class notes, and notifies students there is no homework over spring break.
This document provides definitions and explanations of key genetics concepts including:
1. Pedigrees are used to show ancestral relationships and transmission of genetic traits over generations.
2. A proband is the individual in a pedigree that prompted its construction.
3. Mendel's laws of segregation and independent assortment describe how alleles separate and assort independently during gamete formation and fertilization.
Genetics- A geneticist is studying two genes- Each gene can be either.pdfaoneelectronices
Genetics: A geneticist is studying two genes. Each gene can be either dominant or recessive. A
sample of 100 individuals is categorized as follows. Write your answer as a fraction or a decimal,
rounded to four decimal places. (a) What is the probability that in a randomly sampled
individual, gene 1 is dominant? (b) What is the probability that in a randomly sampled
individual, gene 2 is dominant? (c) Given that gene. I is dominant, what is the probability that
gene 2 is dominant? (d) Two genes are sald to be in linkage equilibrium if the event that gene I is
dominant is independent of the event that gene 2 is dominant. Are these genes in linkage
equilibrium? Part 1 of 4 The probability that gene 1 is dominant in a randomly sampied
individual is Part 2 of 4 The probability that gene 2 is dominant in a randomly sampled
individual is Part: 2/4 Part 3 of 4 The probability that gene 2 is dominant given that gene I is
dominant is.
This document discusses genetic inheritance and autosomal recessive disorders. It explains that if both parents carry a mutation for an autosomal recessive gene, their children have a 25% chance of inheriting both copies of the mutated gene and developing the associated disease. The rest of the children would either be carriers with one normal and one mutated copy of the gene, or be completely normal with two normal copies. It promotes an online dating service that aims to help people find genetically compatible partners to reduce risks of passing on genetic disorders.
This document defines genetic terms and concepts related to single gene disorders and Mendelian inheritance patterns. It discusses alleles, genotypes, phenotypes, dominance, recessiveness, and other basic concepts. It then describes different inheritance patterns including autosomal dominant, autosomal recessive, X-linked, mitochondrial, and triplet repeat disorders. It provides examples of pedigrees that illustrate these patterns. It also discusses risk calculations and the Hardy-Weinberg principle for determining genotype and allele frequencies in a population.
This document discusses several key concepts for analyzing inheritance patterns from pedigrees:
1. It describes modes of inheritance like dominant, recessive, sex-linked, mitochondrial, and maternal effects.
2. Rules are provided for determining genotypes of individuals in dominant and recessive pedigrees, including outsider rules.
3. Methods are described for calculating probabilities of offspring phenotypes given parental genotypes using Mendelian genetics.
Heredity, Mendelian ways of inheritanceVeronique Nas
The document discusses autosomal dominant inheritance. It explains that with autosomal dominant inheritance, if a woman has a mutated gene causing a disease and passes that gene onto her child, the child will have the disease even if the father contributes a healthy gene, because the mutated gene is dominant. The child has a 50% chance of inheriting the mutated gene from the mother and developing the disease.
This document contains 9 problems regarding polygenic inheritance, sex-linked genes, Y-linked genes, sex-influenced traits, sex-limited traits, and pedigree analysis. The problems involve determining genotypes and phenotypes from genetic crosses and family pedigrees related to traits such as kernel color, color vision, baldness, feathering, and dental abnormalities. The student is asked to show work and provide boxed final answers.
Pedigrees are diagrams used to visualize family relationships and genetic inheritance patterns. They use symbols to represent individuals and lines to show genetic relationships. Pedigrees allow doctors to determine if a disease runs in families and what type of inheritance it follows, such as dominant, recessive, or X-linked. Traits are determined to be dominant or recessive based on patterns observed in the pedigree, such as whether affected individuals always have an affected parent for dominant traits. Pedigrees are a key tool for genetic analysis of diseases and determining recurrence risks.
There are two main types of reproduction: asexual reproduction, where genetically identical offspring are produced from one parent through cell division without gamete fusion, and sexual reproduction, where genetically diverse offspring are produced through the fusion of male and female gametes from two parents. Asexual reproduction provides advantages such as requiring only one parent and allowing for faster reproduction, but it results in no genetic variation. Sexual reproduction requires two parents but provides advantages such as genetic variation and the potential for beneficial qualities from both parents, allowing for better adaptation to environmental changes.
Pedigree analysis is an important tool for studying human inherited diseases. Pedigrees make relationships within families easier to visualize, especially in large families. They are used to determine the mode of inheritance, such as dominant, recessive, X-linked, etc. The document then discusses why pedigrees are used for humans instead of other methods due to small family sizes and uncontrolled matings in humans. It provides examples of different modes of inheritance and discusses analyzing dominant and recessive pedigrees to determine genotypes.
This document provides an overview of biological inheritance. It discusses genes and alleles, Mendel's laws of inheritance from his early genetic studies with pea plants, the location of genes on chromosomes, determining sex based on sex chromosomes, inheritance linked to sex chromosomes, and mutations. The key topics covered are Mendel's principles of uniformity, segregation, and independent assortment which established the foundations of modern genetics. It also examines gene location and linkage, sex determination, sex-linked inheritance patterns, and the types and causes of genetic mutations.
Genes are segments of DNA that control hereditary traits in organisms. Genes contain genetic information and can be dominant, recessive, or semi-dominant. Alleles are gene variants that appear at corresponding locations on homologous chromosomes. A monohybrid cross involves breeding organisms with homozygous dominant and recessive genotypes for a trait to determine the dominant allele and inheritance patterns. It can also involve breeding heterozygous individuals to confirm allele dominance.
Genetics and orthodontics /certified fixed orthodontic courses by Indian dent...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078
This document summarizes key concepts in biological inheritance. It discusses genes and alleles, Mendel's laws of inheritance from early genetic studies using pea plants, and the chromosomal theory of heredity. It also addresses determining sex and sex-linked traits, inheritance patterns for traits on the X chromosome, causes of mutations, and provides examples of gene, chromosome, and numerical mutations. The document defines important genetic terms and lists topics covered in each section.
This document discusses genetics and evolution. It provides background on heredity, variation, Mendel's experiments with pea plants, and his laws of inheritance. It describes how traits are passed from parents to offspring through genes, alleles, dominance, and segregation. It discusses evidence for evolution, including homologous and vestigial structures, as well as theories like natural selection and genetic drift. The document also covers modern concepts like DNA, chromosomes, mutation, and molecular evidence supporting common descent.
Lec 02 Factors influencing Human Growth and DevelopmentDr. Imran A. Sajid
These slides are prepared for students of BS Social Work. Social Workers come across clients in different age groups and categories. This subject helps them put the client into social, physical, psychological, and emotional perspectives.
Dr. Imran A. Sajid
Department of Social Work, University of Peshawar, Pakistan
This document provides information on various concepts related to evolution and speciation. It defines key terms, describes mechanisms of natural selection and speciation, and outlines different patterns of evolution such as divergence and convergence. Examples of evidence for evolution are also mentioned, including fossils, comparative anatomy, embryology, biogeography, and molecular biology studies.
This document provides an outline for a chapter on genetics and heredity. It begins with an introduction to the topic and definitions of key terms such as DNA, genes, alleles, and genotypes. It then discusses medical genetics, including human chromosomes, Mendelian inheritance, modes of inheritance such as autosomal recessive and dominant traits as well as sex-linked inheritance. The document also covers chromosomal and genetic anomalies including mutations, aneuploidy involving extra or missing chromosomes, and structural anomalies involving breaks or deletions of chromosomes. It concludes with information on genetic testing and counseling.
The document summarizes key concepts in genetics and inheritance, including:
1) Traits are transmitted by chromosomes which contain genes made of DNA. Genes can be dominant or recessive.
2) Mendel's experiments with pea plants established the basic principles of heredity, including dominance, segregation, and independent assortment.
3) Genes exist in versions called alleles that are received from each parent and can be dominant or recessive.
The document summarizes key concepts in genetics and inheritance, including:
1) Traits are transmitted by chromosomes which contain genes made of DNA. Genes can be dominant or recessive.
2) Mendel's experiments with pea plants established the basic principles of heredity, including dominance, segregation, and independent assortment.
3) Genes exist in versions called alleles that are received from each parent and can be dominant or recessive.
This document provides information about pedigrees and genetic inheritance patterns. It defines genetic disorders as diseases caused by DNA mutations that are passed down from parents to children. There are three main modes of inheritance: autosomal dominant which only requires one copy of a gene, autosomal recessive which requires two copies, and sex-linked recessive which is on the X chromosome and usually only requires one copy in males. A pedigree is a family tree that traces the inheritance of a trait, with shapes and shading used to denote males, females, carriers and affected individuals. By analyzing patterns in a pedigree, like whether generations are skipped or if more males are affected, the mode of inheritance can be determined.
This document summarizes several pedigree analyses involving inheritance patterns of traits:
1. A pedigree is presented where a woman has a 100% chance of passing on a defective gene to her daughter based on her genotype. Calculations are shown for determining the probability that her grandson will have the defective gene.
2. Multiple pedigrees demonstrate autosomal recessive inheritance patterns based on affected and unaffected family members. X-linked inheritance is ruled out.
3. The mode of inheritance is determined to be autosomal recessive for a pedigree where an affected mother passes the trait to all her children. Mitochondrial inheritance and variable expression are discussed.
4. Probabilities are calculated for heterozygous parents and
B) Based on the allele frequency for this trait in the population, w.pdfarihantpuneteleshope
B) Based on the allele frequency for this trait in the population, what assumptions would you
make about the genotype of each outsider in this family tree if you were expecting it to be a
recessive trait? Explain your reasoning.
C) You collect phenotypic data from the living family member and determine that the following
family members have tooth agenesis
Affected member of this family are: II2, II4, II7, II8, III2, III4, III5, III7, III8, IV1, IV2
Which, if any, modes of inheritance may be ruled out for this family? Briefly explain your
reasoning for each mode you rule out (use table below).
D) Are the two sets of twins in this family identical or fraternal twins? What is the basis of your
answer?
E) If III-2 and III-7 married and had a child, what is the probability that their child would have
tooth agenesis? State the mode of inheritance that you think is most likely for this tree. Show
your calculations based on that mode of inheritance.
Mode of Inheritance:
Probability:Rule out? (Yes or No)Rationaleautosomal dominantautosomal recessiveX-linked
dominantX-linked recessive
Solution
A) The outsiders of the family tree are
II-1, II-5, II-6, II-9, III-1
B) The genotype of outsiders are as under
II-1, a carrier, because one of the offspring is affected (III-2).
II-5, affected, because both of its offsprings are affected (III-4, III-5).
II-6, normal, also not a carrier, because its offspring is normal (III-6).
II-9, affected, because both of its offsprings are affected (III-7, III-8)
III-1, affected, because both of its offsprings are affected (IV-1, IV-2).
C)
The mode of inheritance is not autosomal dominant, because the offspring of the affected parent
(II-7) is normal.
The mode of inheritance is outosomal recessive. Because the parents I-1, I-2 are carriers and
offspring of the affected parent (II-7) is normal.
The inheitance is not X-linked dominant nor X-linked recessive, because both male and female
are affected.
D) The two sets of twins in this family- one set is identical and other is fraternal twins
Twins (II-1, II-2) are fraternal twins, because one is affeted (II-2) and other is unaffected (II-1).
Twins (II-7, II-8) are identical twins, because both the twins are affected.
E) If III-2 and III-7 married, their 100% probability that the child would have tooth agenesis.
Because the inheritance is autosomal recessive and both are affected..
Mendel performed dihybrid crosses in garden peas to study inheritance of two traits simultaneously. He found that the alleles for each trait sorted independently during gamete formation, resulting in a 9:3:3:1 phenotypic ratio in the offspring (F2 generation). This led Mendel to formulate his Law of Independent Assortment, which states that allele pairs for different traits assort independently during meiosis. His findings demonstrated that inheritance of one trait does not influence inheritance of another trait.
The document discusses natural selection and how certain traits or characteristics help organisms better adapt to their environment, while others that are less favorable typically do not survive. It also covers genetics topics like DNA, genes, alleles, dominance, phenotypes, genotypes, and how gene expression and traits are influenced by both an organism's genetic makeup and environmental factors. Evolution occurs as the best adapted organisms with favorable traits are able to survive changes in the environment and pass those traits to offspring.
1. The document discusses genetics, inheritance, and Mendel's experiments with pea plants. It defines key genetic terms and concepts.
2. Mendel conducted experiments breeding pea plants with distinct traits like plant height. His findings established basic principles of inheritance including dominance, segregation of alleles, and independent assortment.
3. Mendel determined that traits are passed from parents to offspring through discrete units (now known as genes and alleles) which segregate and sort independently during reproduction.
Heridity and Evolution - Biology Class 10 CBSEAthira S
This Powerpoint Presentation is on the chapter Heredity and Evolution from class 10 Biology in CBSE Board. The contents of the presentation are from the NCERT science textbook for class 10 and Lakhmir Singh Biology Handbook Class 10.
a.) Topoisomerase-Topoisomerases are enzymes used in the overwindin.pdfprateekvirk85
NaCN(aq) ? Na+(aq) + CN-(aq) Assuming that NaCN is an ionic compound
(composed of a monatomic cation and a polyatomic anion) it will completely dissociate in water,
therefore [NaCN] = [CN-] Then, since HCN (Prussic Acid) is a weak acid, write the equilibrium
equation between the acid and its conjugate base: ..... H2O(l) + CN-(aq) ? HCN(aq) + OH-(aq)
Pure solids and liquids are ignored in equilibrium reactions, so water is ignored. I ........ ..........
0.1 . . | . . . . 0 . . . . . 0 C ...... ............ -x . . | . . . .+x . . . . +x E ...... .......... 0.1 . . | . . . . x . . . . . x
Since Ka was given, change it to Kb by using: Ka * Kb = Kw 4.9*10^(-10) * Kb = 10^(-14) Kb
= 2.0*10^(-5) Then set up the base dissociation constant equation (since it was written with a
CN- (base) on the left and HCN (acid) on the right). It is assumed that x is significantly smaller
than [CN-], just to make the calculations easier (avoiding quadratics). Kb = [HCN] [OH-] / [CN-
] 2.0*10^(-5) = x² / 0.1 x² = 2.0*10^(-6) x = [OH-] = 1.4*10^(-3) M pOH = -log[OH-] = -
log(1.4*10^(-3)) = 2.8 pH = 14 - pOH = 14 - 2.8 = 11.2
Solution
NaCN(aq) ? Na+(aq) + CN-(aq) Assuming that NaCN is an ionic compound
(composed of a monatomic cation and a polyatomic anion) it will completely dissociate in water,
therefore [NaCN] = [CN-] Then, since HCN (Prussic Acid) is a weak acid, write the equilibrium
equation between the acid and its conjugate base: ..... H2O(l) + CN-(aq) ? HCN(aq) + OH-(aq)
Pure solids and liquids are ignored in equilibrium reactions, so water is ignored. I ........ ..........
0.1 . . | . . . . 0 . . . . . 0 C ...... ............ -x . . | . . . .+x . . . . +x E ...... .......... 0.1 . . | . . . . x . . . . . x
Since Ka was given, change it to Kb by using: Ka * Kb = Kw 4.9*10^(-10) * Kb = 10^(-14) Kb
= 2.0*10^(-5) Then set up the base dissociation constant equation (since it was written with a
CN- (base) on the left and HCN (acid) on the right). It is assumed that x is significantly smaller
than [CN-], just to make the calculations easier (avoiding quadratics). Kb = [HCN] [OH-] / [CN-
] 2.0*10^(-5) = x² / 0.1 x² = 2.0*10^(-6) x = [OH-] = 1.4*10^(-3) M pOH = -log[OH-] = -
log(1.4*10^(-3)) = 2.8 pH = 14 - pOH = 14 - 2.8 = 11.2.
A) There are several factors taken into consideration before giving .pdfprateekvirk85
Tanzania is seeking a credit rating to raise capital for infrastructure projects through bond issues. It has shown strong economic growth of 7% in 2014, reducing poverty and increasing incomes, allowing it to advance from low- to middle-income status. Tanzania recently issued a $500 million bond with a 5-year maturity to be repaid in semi-annual installments, though the price faced speculation. Further bond issues may have higher coupons given Tanzania's continued growth, with proceeds still intended for infrastructure development.
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Pedigrees are diagrams used to visualize family relationships and genetic inheritance patterns. They use symbols to represent individuals and lines to show genetic relationships. Pedigrees allow doctors to determine if a disease runs in families and what type of inheritance it follows, such as dominant, recessive, or X-linked. Traits are determined to be dominant or recessive based on patterns observed in the pedigree, such as whether affected individuals always have an affected parent for dominant traits. Pedigrees are a key tool for genetic analysis of diseases and determining recurrence risks.
There are two main types of reproduction: asexual reproduction, where genetically identical offspring are produced from one parent through cell division without gamete fusion, and sexual reproduction, where genetically diverse offspring are produced through the fusion of male and female gametes from two parents. Asexual reproduction provides advantages such as requiring only one parent and allowing for faster reproduction, but it results in no genetic variation. Sexual reproduction requires two parents but provides advantages such as genetic variation and the potential for beneficial qualities from both parents, allowing for better adaptation to environmental changes.
Pedigree analysis is an important tool for studying human inherited diseases. Pedigrees make relationships within families easier to visualize, especially in large families. They are used to determine the mode of inheritance, such as dominant, recessive, X-linked, etc. The document then discusses why pedigrees are used for humans instead of other methods due to small family sizes and uncontrolled matings in humans. It provides examples of different modes of inheritance and discusses analyzing dominant and recessive pedigrees to determine genotypes.
This document provides an overview of biological inheritance. It discusses genes and alleles, Mendel's laws of inheritance from his early genetic studies with pea plants, the location of genes on chromosomes, determining sex based on sex chromosomes, inheritance linked to sex chromosomes, and mutations. The key topics covered are Mendel's principles of uniformity, segregation, and independent assortment which established the foundations of modern genetics. It also examines gene location and linkage, sex determination, sex-linked inheritance patterns, and the types and causes of genetic mutations.
Genes are segments of DNA that control hereditary traits in organisms. Genes contain genetic information and can be dominant, recessive, or semi-dominant. Alleles are gene variants that appear at corresponding locations on homologous chromosomes. A monohybrid cross involves breeding organisms with homozygous dominant and recessive genotypes for a trait to determine the dominant allele and inheritance patterns. It can also involve breeding heterozygous individuals to confirm allele dominance.
Genetics and orthodontics /certified fixed orthodontic courses by Indian dent...Indian dental academy
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.
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0091-9248678078
This document summarizes key concepts in biological inheritance. It discusses genes and alleles, Mendel's laws of inheritance from early genetic studies using pea plants, and the chromosomal theory of heredity. It also addresses determining sex and sex-linked traits, inheritance patterns for traits on the X chromosome, causes of mutations, and provides examples of gene, chromosome, and numerical mutations. The document defines important genetic terms and lists topics covered in each section.
This document discusses genetics and evolution. It provides background on heredity, variation, Mendel's experiments with pea plants, and his laws of inheritance. It describes how traits are passed from parents to offspring through genes, alleles, dominance, and segregation. It discusses evidence for evolution, including homologous and vestigial structures, as well as theories like natural selection and genetic drift. The document also covers modern concepts like DNA, chromosomes, mutation, and molecular evidence supporting common descent.
Lec 02 Factors influencing Human Growth and DevelopmentDr. Imran A. Sajid
These slides are prepared for students of BS Social Work. Social Workers come across clients in different age groups and categories. This subject helps them put the client into social, physical, psychological, and emotional perspectives.
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This document provides information on various concepts related to evolution and speciation. It defines key terms, describes mechanisms of natural selection and speciation, and outlines different patterns of evolution such as divergence and convergence. Examples of evidence for evolution are also mentioned, including fossils, comparative anatomy, embryology, biogeography, and molecular biology studies.
This document provides an outline for a chapter on genetics and heredity. It begins with an introduction to the topic and definitions of key terms such as DNA, genes, alleles, and genotypes. It then discusses medical genetics, including human chromosomes, Mendelian inheritance, modes of inheritance such as autosomal recessive and dominant traits as well as sex-linked inheritance. The document also covers chromosomal and genetic anomalies including mutations, aneuploidy involving extra or missing chromosomes, and structural anomalies involving breaks or deletions of chromosomes. It concludes with information on genetic testing and counseling.
The document summarizes key concepts in genetics and inheritance, including:
1) Traits are transmitted by chromosomes which contain genes made of DNA. Genes can be dominant or recessive.
2) Mendel's experiments with pea plants established the basic principles of heredity, including dominance, segregation, and independent assortment.
3) Genes exist in versions called alleles that are received from each parent and can be dominant or recessive.
The document summarizes key concepts in genetics and inheritance, including:
1) Traits are transmitted by chromosomes which contain genes made of DNA. Genes can be dominant or recessive.
2) Mendel's experiments with pea plants established the basic principles of heredity, including dominance, segregation, and independent assortment.
3) Genes exist in versions called alleles that are received from each parent and can be dominant or recessive.
This document provides information about pedigrees and genetic inheritance patterns. It defines genetic disorders as diseases caused by DNA mutations that are passed down from parents to children. There are three main modes of inheritance: autosomal dominant which only requires one copy of a gene, autosomal recessive which requires two copies, and sex-linked recessive which is on the X chromosome and usually only requires one copy in males. A pedigree is a family tree that traces the inheritance of a trait, with shapes and shading used to denote males, females, carriers and affected individuals. By analyzing patterns in a pedigree, like whether generations are skipped or if more males are affected, the mode of inheritance can be determined.
This document summarizes several pedigree analyses involving inheritance patterns of traits:
1. A pedigree is presented where a woman has a 100% chance of passing on a defective gene to her daughter based on her genotype. Calculations are shown for determining the probability that her grandson will have the defective gene.
2. Multiple pedigrees demonstrate autosomal recessive inheritance patterns based on affected and unaffected family members. X-linked inheritance is ruled out.
3. The mode of inheritance is determined to be autosomal recessive for a pedigree where an affected mother passes the trait to all her children. Mitochondrial inheritance and variable expression are discussed.
4. Probabilities are calculated for heterozygous parents and
B) Based on the allele frequency for this trait in the population, w.pdfarihantpuneteleshope
B) Based on the allele frequency for this trait in the population, what assumptions would you
make about the genotype of each outsider in this family tree if you were expecting it to be a
recessive trait? Explain your reasoning.
C) You collect phenotypic data from the living family member and determine that the following
family members have tooth agenesis
Affected member of this family are: II2, II4, II7, II8, III2, III4, III5, III7, III8, IV1, IV2
Which, if any, modes of inheritance may be ruled out for this family? Briefly explain your
reasoning for each mode you rule out (use table below).
D) Are the two sets of twins in this family identical or fraternal twins? What is the basis of your
answer?
E) If III-2 and III-7 married and had a child, what is the probability that their child would have
tooth agenesis? State the mode of inheritance that you think is most likely for this tree. Show
your calculations based on that mode of inheritance.
Mode of Inheritance:
Probability:Rule out? (Yes or No)Rationaleautosomal dominantautosomal recessiveX-linked
dominantX-linked recessive
Solution
A) The outsiders of the family tree are
II-1, II-5, II-6, II-9, III-1
B) The genotype of outsiders are as under
II-1, a carrier, because one of the offspring is affected (III-2).
II-5, affected, because both of its offsprings are affected (III-4, III-5).
II-6, normal, also not a carrier, because its offspring is normal (III-6).
II-9, affected, because both of its offsprings are affected (III-7, III-8)
III-1, affected, because both of its offsprings are affected (IV-1, IV-2).
C)
The mode of inheritance is not autosomal dominant, because the offspring of the affected parent
(II-7) is normal.
The mode of inheritance is outosomal recessive. Because the parents I-1, I-2 are carriers and
offspring of the affected parent (II-7) is normal.
The inheitance is not X-linked dominant nor X-linked recessive, because both male and female
are affected.
D) The two sets of twins in this family- one set is identical and other is fraternal twins
Twins (II-1, II-2) are fraternal twins, because one is affeted (II-2) and other is unaffected (II-1).
Twins (II-7, II-8) are identical twins, because both the twins are affected.
E) If III-2 and III-7 married, their 100% probability that the child would have tooth agenesis.
Because the inheritance is autosomal recessive and both are affected..
Mendel performed dihybrid crosses in garden peas to study inheritance of two traits simultaneously. He found that the alleles for each trait sorted independently during gamete formation, resulting in a 9:3:3:1 phenotypic ratio in the offspring (F2 generation). This led Mendel to formulate his Law of Independent Assortment, which states that allele pairs for different traits assort independently during meiosis. His findings demonstrated that inheritance of one trait does not influence inheritance of another trait.
The document discusses natural selection and how certain traits or characteristics help organisms better adapt to their environment, while others that are less favorable typically do not survive. It also covers genetics topics like DNA, genes, alleles, dominance, phenotypes, genotypes, and how gene expression and traits are influenced by both an organism's genetic makeup and environmental factors. Evolution occurs as the best adapted organisms with favorable traits are able to survive changes in the environment and pass those traits to offspring.
1. The document discusses genetics, inheritance, and Mendel's experiments with pea plants. It defines key genetic terms and concepts.
2. Mendel conducted experiments breeding pea plants with distinct traits like plant height. His findings established basic principles of inheritance including dominance, segregation of alleles, and independent assortment.
3. Mendel determined that traits are passed from parents to offspring through discrete units (now known as genes and alleles) which segregate and sort independently during reproduction.
Heridity and Evolution - Biology Class 10 CBSEAthira S
This Powerpoint Presentation is on the chapter Heredity and Evolution from class 10 Biology in CBSE Board. The contents of the presentation are from the NCERT science textbook for class 10 and Lakhmir Singh Biology Handbook Class 10.
Similar to 2a) The inheritance pattern is Autosomal recessive.Parents are not.pdf (20)
a.) Topoisomerase-Topoisomerases are enzymes used in the overwindin.pdfprateekvirk85
NaCN(aq) ? Na+(aq) + CN-(aq) Assuming that NaCN is an ionic compound
(composed of a monatomic cation and a polyatomic anion) it will completely dissociate in water,
therefore [NaCN] = [CN-] Then, since HCN (Prussic Acid) is a weak acid, write the equilibrium
equation between the acid and its conjugate base: ..... H2O(l) + CN-(aq) ? HCN(aq) + OH-(aq)
Pure solids and liquids are ignored in equilibrium reactions, so water is ignored. I ........ ..........
0.1 . . | . . . . 0 . . . . . 0 C ...... ............ -x . . | . . . .+x . . . . +x E ...... .......... 0.1 . . | . . . . x . . . . . x
Since Ka was given, change it to Kb by using: Ka * Kb = Kw 4.9*10^(-10) * Kb = 10^(-14) Kb
= 2.0*10^(-5) Then set up the base dissociation constant equation (since it was written with a
CN- (base) on the left and HCN (acid) on the right). It is assumed that x is significantly smaller
than [CN-], just to make the calculations easier (avoiding quadratics). Kb = [HCN] [OH-] / [CN-
] 2.0*10^(-5) = x² / 0.1 x² = 2.0*10^(-6) x = [OH-] = 1.4*10^(-3) M pOH = -log[OH-] = -
log(1.4*10^(-3)) = 2.8 pH = 14 - pOH = 14 - 2.8 = 11.2
Solution
NaCN(aq) ? Na+(aq) + CN-(aq) Assuming that NaCN is an ionic compound
(composed of a monatomic cation and a polyatomic anion) it will completely dissociate in water,
therefore [NaCN] = [CN-] Then, since HCN (Prussic Acid) is a weak acid, write the equilibrium
equation between the acid and its conjugate base: ..... H2O(l) + CN-(aq) ? HCN(aq) + OH-(aq)
Pure solids and liquids are ignored in equilibrium reactions, so water is ignored. I ........ ..........
0.1 . . | . . . . 0 . . . . . 0 C ...... ............ -x . . | . . . .+x . . . . +x E ...... .......... 0.1 . . | . . . . x . . . . . x
Since Ka was given, change it to Kb by using: Ka * Kb = Kw 4.9*10^(-10) * Kb = 10^(-14) Kb
= 2.0*10^(-5) Then set up the base dissociation constant equation (since it was written with a
CN- (base) on the left and HCN (acid) on the right). It is assumed that x is significantly smaller
than [CN-], just to make the calculations easier (avoiding quadratics). Kb = [HCN] [OH-] / [CN-
] 2.0*10^(-5) = x² / 0.1 x² = 2.0*10^(-6) x = [OH-] = 1.4*10^(-3) M pOH = -log[OH-] = -
log(1.4*10^(-3)) = 2.8 pH = 14 - pOH = 14 - 2.8 = 11.2.
A) There are several factors taken into consideration before giving .pdfprateekvirk85
Tanzania is seeking a credit rating to raise capital for infrastructure projects through bond issues. It has shown strong economic growth of 7% in 2014, reducing poverty and increasing incomes, allowing it to advance from low- to middle-income status. Tanzania recently issued a $500 million bond with a 5-year maturity to be repaid in semi-annual installments, though the price faced speculation. Further bond issues may have higher coupons given Tanzania's continued growth, with proceeds still intended for infrastructure development.
48) there is increasing , institutionalization in US finacial market.pdfprateekvirk85
here heat capacity of calorimeter = (50 x 4.186 x ( 37.92 - 29.11 ) - 50 x 4.186 x (
29.11 - 20.91 ))/dt = 127.673/dt where dt is the change in temp .. it is not given so i have
mentioned it as dt
Solution
here heat capacity of calorimeter = (50 x 4.186 x ( 37.92 - 29.11 ) - 50 x 4.186 x (
29.11 - 20.91 ))/dt = 127.673/dt where dt is the change in temp .. it is not given so i have
mentioned it as dt.
H2CrO4 ? 2 H+ + CrO42- Ka = 5.83 x 10-8 Initial .0375 2(.150) 0 Change - x +x
+x Eq. .0375 -x .3 + x x Ka = [H+][A-]/[HA] 5.83E-8 = (.3 + x)(x)/(.0375 - x) Let\'s assume
that the value of [H+] is within +- 5%, so we can simplify the above eq. to make calculations
simpler. 5.83E-8 = (.3x + x^2)/(.0375) x = [CrO4^2-] = 7.3E-9 mol/L
Solution
H2CrO4 ? 2 H+ + CrO42- Ka = 5.83 x 10-8 Initial .0375 2(.150) 0 Change - x +x
+x Eq. .0375 -x .3 + x x Ka = [H+][A-]/[HA] 5.83E-8 = (.3 + x)(x)/(.0375 - x) Let\'s assume
that the value of [H+] is within +- 5%, so we can simplify the above eq. to make calculations
simpler. 5.83E-8 = (.3x + x^2)/(.0375) x = [CrO4^2-] = 7.3E-9 mol/L.
2) Answer is The cloud storage provider ensures that you have a bac.pdfprateekvirk85
FOR ACIDIC MEDIUM: First separate into half-reactions. Second balance all
elements other than \"O\" and \"H\" Third balance \"O\" with \"H2O\" Fourth balance \"H\" with
\"H+\" ions Fifth balance charge with electrons then repeat for the second half reaction. make
sure the electrons are on opposite sides of you half reactions. (one reaction should have them in
the reactants, the other the products) make the electrons \"cancel\" each other by multiplying the
other half reaction by the number of the electrons. then add the two half reactions together by
combining like terms.
Solution
FOR ACIDIC MEDIUM: First separate into half-reactions. Second balance all
elements other than \"O\" and \"H\" Third balance \"O\" with \"H2O\" Fourth balance \"H\" with
\"H+\" ions Fifth balance charge with electrons then repeat for the second half reaction. make
sure the electrons are on opposite sides of you half reactions. (one reaction should have them in
the reactants, the other the products) make the electrons \"cancel\" each other by multiplying the
other half reaction by the number of the electrons. then add the two half reactions together by
combining like terms..
Macrophages These cells regulate inflammatory responses to bacteria.pdfprateekvirk85
a. Sn2/E2 mixture (secondary; strong nucleophile) b. Mostly Sn2 with some E2
(primary; strong nucleophile) c. E2 (secondary and very hindered, blocking Sn2) d. Sn1/E1
mixture (tertiary; water indicates it\'s going Sn1/E1) a. cyanide b. alcohol c. ester
Solution
a. Sn2/E2 mixture (secondary; strong nucleophile) b. Mostly Sn2 with some E2
(primary; strong nucleophile) c. E2 (secondary and very hindered, blocking Sn2) d. Sn1/E1
mixture (tertiary; water indicates it\'s going Sn1/E1) a. cyanide b. alcohol c. ester.
বাংলাদেশের অর্থনৈতিক সমীক্ষা ২০২৪ [Bangladesh Economic Review 2024 Bangla.pdf] কম্পিউটার , ট্যাব ও স্মার্ট ফোন ভার্সন সহ সম্পূর্ণ বাংলা ই-বুক বা pdf বই " সুচিপত্র ...বুকমার্ক মেনু 🔖 ও হাইপার লিংক মেনু 📝👆 যুক্ত ..
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2a) The inheritance pattern is Autosomal recessive.Parents are not.pdf
1. 2a) The inheritance pattern is Autosomal recessive.
Parents are not affected (generation 1)
In Generation 2, son is affected
In generation 3, no one is affected.
In Autosomal recessive, both recessive genes should be present to cause a disease. If the parents
in generation 1 carry one recessive gene each, son of generation 2 might get two recessive gene
(each from one parent) to get affected. The son carries two recessive genes from which one gene
will be passed on to third generation which is not sufficient to get affected. So autosomal
recessive inheritance pattern skip generation that is not seen in every generation of an affected
family.
Solution
2a) The inheritance pattern is Autosomal recessive.
Parents are not affected (generation 1)
In Generation 2, son is affected
In generation 3, no one is affected.
In Autosomal recessive, both recessive genes should be present to cause a disease. If the parents
in generation 1 carry one recessive gene each, son of generation 2 might get two recessive gene
(each from one parent) to get affected. The son carries two recessive genes from which one gene
will be passed on to third generation which is not sufficient to get affected. So autosomal
recessive inheritance pattern skip generation that is not seen in every generation of an affected
family.