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a large population of laboratory animals has been allowed to breed randomly for a number of generations. after several generations, 49% of the animals display a recessive trait (bb), the same percentage as at the beginning of the breeding program. the rest of the animals show the dominant phenotype, with heterozygote individuals indistinguishable from the homozygous dominant individuals.what is the most reasonable conclusion that can be drawn from the fact that the frequency of allele b has not changed over time?a) the population is undergoing genetic driftb) the two phenotypes are equally adaptive under laboratory conditions c) the genotype BB is lethal d) there has been a high rate of mutation of allele B to allele b

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Blind Mexican cavefish (Astyanax mexicanus) live in caves and do not have eyes as adults (though they do form eyes during development). The cave fish diverged from a surface-dwelling population which does have eyes. The cave fish have extremely low genetic diversity compared to their surface-dwelling close relatives (pictured below). This observation is best explained by:
The effect of mutation on a population (select all that apply)
How can you tell if a population is in HWE? The population is in HWE if p + q = 1The population is in HWE if p^2 + 2pq + q^2 = 1The population is in HWE if the genotype frequencies are p^2, 2pq, and q^2None of these are mathematical indications that a population is in HWE

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