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9 Cards in this Set
- Front
- Back
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Incomplete dominance
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when there is a visual difference between homo and heterozygous. Pink flowers
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Multiple Alleles
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when there are more than 2 alleles. Rabbit colors.
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over dominance
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heterozygote is better off than either homo.
sickle cell anemia |
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Incomplete Penetrance
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genotype is there, phenotype isnt...polydactyly
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Expressivity
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The allele is present but the phenotype varies from individual to individual
gives dogs and cats variablity |
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Sex-Limited Inheritance
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seen only in one sex
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Sex Influenced Inheritance
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Gender impacts the phenotype
For example in human baldness, males will go bald with one copy of the allele, but females need two. So Baldness is dominant in males but recessive in females. (And contrary to popular belief it is not X-linked.) |
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Gene Dosage Effect
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This is very similar to incomplete dominance but is usually seen in sex linked genes
has to do with protein levels and loss of function |
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Epistasis
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One gene can mask the effects of another gene, even when alleles for phenotype are there
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