Population Genetics - AP Biology
Card 1 of 4
What is the Hardy–Weinberg equation relating allele frequencies for two alleles?
What is the Hardy–Weinberg equation relating allele frequencies for two alleles?
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$p + q = 1$. Shows that frequencies of two alleles must sum to 1.
$p + q = 1$. Shows that frequencies of two alleles must sum to 1.
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Find $p$ if $q = 0.2$ in a two-allele Hardy–Weinberg model.
Find $p$ if $q = 0.2$ in a two-allele Hardy–Weinberg model.
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$p = 0.8$. Since $p + q = 1$, subtract q from 1 to find p.
$p = 0.8$. Since $p + q = 1$, subtract q from 1 to find p.
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What is stabilizing selection?
What is stabilizing selection?
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Selection favors intermediate phenotypes; reduces extremes. Maintains population mean while reducing variation around it.
Selection favors intermediate phenotypes; reduces extremes. Maintains population mean while reducing variation around it.
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What genotype frequency does $2pq$ represent under Hardy–Weinberg?
What genotype frequency does $2pq$ represent under Hardy–Weinberg?
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Frequency of heterozygous genotype ($Aa$). Factor of 2 accounts for two ways to inherit different alleles ($Aa$ or $aA$).
Frequency of heterozygous genotype ($Aa$). Factor of 2 accounts for two ways to inherit different alleles ($Aa$ or $aA$).
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