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15 Cards in this Set
- Front
- Back
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what is the difference between polygenic genes and pleiotrophic genes?
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polygenetic genes:inhereited characteristics that are affected by more than one gene.
pleiotrophic genes: genes that affect many characteristics. |
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Which genes are located on the same chromosome that tend to be transmitted together?
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linked genes
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In a test coss, would one breed a dominant heterozygous to an all recessive or a dominant homozygous?
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dominant homozygous; breed most recessive to most dominant.
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what are genes?
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units of instuction, located on the chromosomes, that produce or influence a specfic trait in offspring.
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which organism did mendel practise his experiments on?
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garden peas
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How can geneticists show the possible combinations of alleles in offspring?
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punnett squares
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Is a phenotype an observanle trait in an organism?
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yes
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The hereditary factors that an indiviidual will pass on to his/her offspring are determined by his/her?
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genotype
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What happens during epistasis?
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a gene masks the expression of another gene
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what term is used to explain the trait that disappears in the F1 generation but reappears in the F2 generaion?
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recessive
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when crossing two heterozygous parents, what is the ratio expressed?
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3:1
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How many possible phenotypes could one expect to get from crossing with multiple alleles?
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4 or more possible phenotypes.
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Which blood type is dominant over o.
A,B,AB? |
all , A,B.AB
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With using mathematics in heredity, if two outcomes are independent, which rule do you use?
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The multiplication rule
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What is complementary interaction?
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when two genes interact to produce a phenotype that neither is capable of producing itself.
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