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Genetics
 

Genetics

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    Genetics Genetics Presentation Transcript

    •  
    • Gregor Mendel
    • Vocabulary
    • Pisum sativum
    • Genetic Crosses
    • Mendel’s Laws
    • Dominance
    • $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 Gregor Mendel Vocabulary Pisum sativum Genetic Crosses Mendel’s Laws Dominance
    • Took courses in this subject at the University of Vienna that later helped him with his genetic studies
    • What is mathematics or statistics?
    • Mendel did research on this --- the transmission of characteristics from parent to offspring
    • What is heredity?
    • Number of traits Mendel observed in his study with pea plants
    • What is Seven?
    • Mendel used this to transfer pollen from the anther to the stigma of flowers
    • What is a small paint brush?
    • Mendel was able to document the traits of each pea generation by controlling this
    • What is pollination?
    • Two forms of a Gene
    • What are alleles?
    • Genotype referred to as being “Pure”
    • What is homozygous?
    • Heterozygous genotypes are also called this
    • What are hybrids?
    • Two forms that a gene or allele may take
    • What are dominant or recessive?
    • Mendel stated that physical traits were inherited as these
    • What are “particles”?
    • Pure parent pea plants are obtained by doing this
    • What is allow to self-pollinate?
    • Recessive seed shape in Mendel’s peas
    • What is wrinkled?
    • Flower part that produces pollen
    • What is the stamen?
    • Mendel was able to cross 2 hybrids by doing this
    • What is transfer pollen himself or cross-pollinate?
    • Actual observed ratio that Mendel got from an F 1 monohybrid Cross
    • What is 2.96:1?
    • Cross involving 2 traits
    • What is dihybrid?
    • Used to solve genetic crosses
    • What is a Punnett Square?
    • Percentage of tall pea plants resulting from an F 1 Monohybrid Cross
    • What is 75%?
    • Another name for an F 2 Monohybrid Cross
    • What is a testcross?
    • Genotypic ratio for an F 2 Monohybrid Cross
    • What is 1:1?
    • Number of P 1 traits that fail to appear in Mendel’s F 1 pea plants
    • What is one?
    • Trait that appeared in the F 1 generation was controlled by this factor or allele
    • What is dominant?
    • Separation of factors or alleles during the formation of gametes
    • What is the Law of Segregation?
    • Dihybrid Crosses showed that alleles aren’t connected when being distributed to gametes
    • What is the Law of Independent Assortment?
    • Daily Double!!
    • Number of Possible allele Combinations in an F 1 Dihybrid Cross
    • What is four?
    • Used to represent alleles or factors that mask others
    • What is a Capital Letter?
    • States that recessive trait alleles have no effect on phenotype when paired with a dominant trait allele
    • What is the Law of Dominance?
    • Gives hybrids an appearance in between the phenotypes of the two parents
    • What is Incomplete Dominance?
    • Multiple alleles for human blood type is an example
    • What is Codominance?
    • Type of dominance shown in Mendel’s pea plant crosses
    • What is Complete Dominance?
    • Double Jeopardy!!
    •  
    • Genetic Ratios
    • Genetic Disorders
    • Genes
    • Sex-Linked
    • Mutations
    • Human Genetics
    • $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000 $200 $400 $600 $800 $1000 Genetic Ratios Genetic Disorders Genes Sex-linked Mutations Human Genetics
    • P 1 Monohybrid genotypic ratio
    • What is All Alike?
    • F 1 Monohybrid genotypic ratio
    • What is 1:2:1?
    • F 2 Monohybrid genotypic ratio
    • What is 1:1?
    • F 1 Dihybrid Phenotypic ratio
    • What is 9:3:3:1?
    • Probability of getting hybrids from an F 1 Monohybrid Cross
    • What is 50% or ½?
    • Family record showing the inheritance of a trait over several generations
    • What is a pedigree?
    • Type of mutation that causes death, often before birth
    • What is a lethal mutation?
    • Genetic disorder that produces a defective form of hemoglobin
    • What is sickle cell anemia?
    • Chromosome mutation resulting in Down Syndrome
    • What is nondisjunction?
    • Genetic disorder in which the body can not metabolize the amino acid phenylalanine
    • What is PKU?
    • Alternate forms of a Gene
    • What are alleles?
    • Genes are carried on these
    • What are chromosomes?
    • Shows the linear sequence of genes on a chromosome
    • What is a chromosome map?
    • Gene mutation involving a single nucleotide
    • What is a point mutation?
    • Genes found on the same chromosome are said to be this
    • What is linked?
    • Genotype for males
    • What is XY?
    • Sex chromosome that carries the most genes
    • What is the X chromosome?
    • X-linked disease usually in males that impairs the ability of blood to clot
    • What is hemophilia?
    • Females that do not express a trait but can pass the trait on to their offspring
    • What are carriers?
    • The presence of male or female hormones affects these traits
    • What are sex-influenced traits?
    • A mutation may take place in any of these
    • What is a cell?
    • Mutations that aren’t passed on to offspring
    • What are somatic mutations?
    • Organisms with these have a better chance of reproducing
    • What is a beneficial mutation?
    • Loss of a piece of a chromosome due to chromosomal breakage
    • What is a deletion?
    • Daily Double!!
    • Condition in which a zygote has only 45 chromosomes
    • What is monosomy?
    • Trait controlled by two or more genes such as eye or skin color
    • What is a polygenic trait?
    • Genetic disorder found in European Jews in which the nervous system of infants deteriorates
    • What is Tay-Sachs disease?
    • Genetic disorder carried on the X chromosome resulting in the wasting away of muscles
    • What is muscular dystrophy?
    • XXY chromosomes in a male
    • What is Klinefelter’s syndrome?
    • Screening for this disorder is performed immediately after birth in the United States
    • What is PKU?
    • Final Jeopardy
    • This type of dominance occurs when heterozygous individuals & dominant homozygous individuals are indistinguishable in phenotype
    • What is complete dominance?