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Definition
| Proportions of particular alleles at a locus for a population |
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Definition
| Proportions of particular genotypes for a population |
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| Hardy-Weinberg Equilibrium |
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Definition
| Under certain conditions gene frequencies at a locus do not change from generation to generation |
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| Carriers occur at a frequency of ?? |
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| what is the equation used to calculate female unaffected allelic genotypic frequencies |
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Definition
A population has subdivisions that do not interbreed
Groups are reproductively separated
Causes may be racial, religious or cultural |
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Term
| positive assorting mating |
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Definition
| Individuals chose mates that have particular traits that are the same |
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Term
| negative assortive mating |
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Definition
| All non random mating except ____ ____ ____ increase the frequency of autosomal recessive disease because they increase the likelihood that carriers of recessive alleles mate. |
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Definition
| is the number of progeny surviving to reproduce |
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| compares the individual’s fitness with the best fitness observed in the population |
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Definition
give an example of the following scenario: Selection is most effective for dominant lethal alleles
These alleles control traits that result in death
Extremely rare in human populations |
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Definition
| X-linked deleterious alleles are lost more frequently from |
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| why does a heterozygote recessive allele get maintained at a higher frequency than expected than either homozygote |
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Definition
Heterozygotes have lower rates of infection with the typhoid bacterium.
what disease is this referred to? |
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Term
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Definition
Through random events, some individuals fail to reproduce and pass on their genes
Effect is greatest in small populations
Can be thought of as sampling error |
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Term
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Definition
| A newly isolated population may not be representative of the population from which they originate |
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Definition
| Where a single catastrophic event may leave an unrepresentative sample of the population surviving. |
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Term
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Definition
Movement of genes from one population to another
Migrating individuals must be of breeding age and mate within the new population.
Can introduce new alleles
Can prevent two populations from diverging. |
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