Term
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Definition
| interbreeding groups of individuals |
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Term
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Definition
| all the genes and their alleles in a population |
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Term
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Definition
| change of allele frequencies in a gene pool |
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Term
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Definition
| how common an allele is in a population |
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Term
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Definition
| fraction or % od population with a given phenotype |
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Term
| gamete genotype frequencies |
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Definition
are equal to the populations allele frequencies
-used with punnet square to find genotype frequencies in offspring |
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Term
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Definition
p^2= frequency of one homozygote
q^2= frequency of one homozygote
2pq= frequency of other heterozygote |
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Term
| Hardy- Weinberg Equilibrium |
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Definition
when allele frequencies don't change over time
5 requirements:
1. no mutation
2. random mating
3.no naturel selection
4.large population size
5. isolation |
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Term
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Definition
collection of duplicated genes
-diverge by point mutations
-sequence similarity
-take on new functions |
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Term
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Definition
| genes for the many alpha and beta hemoglobin polypeptides in humans |
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Term
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Definition
random changes in allele frequencies, due to statistically small population size
ex. bottleneck effect= when a large reduction in population size randomly favors certain alleles= loss of variation and fitness |
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Term
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Definition
| genetic exchange between populations due to migration |
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Term
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Definition
choice of mating partner affected by phenotype
2 types |
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Term
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Definition
traits affect competition within 1 sex to mate
ex. male traits affecting dominance |
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Term
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Definition
traits affect appeal to opposite sex
ex. male traits affecting visual or behavioral appeal |
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