A population of 1000 individuals has been broken into 50 equal size subpopulatio

Question

A population of 1000 individuals has been broken into 50 equal size subpopulations for a few hundred generations, with no movement of individuals between them. You take a random sample of individuals from all 50 subpopulations, thinking you are dealing with a single continuous population. For one locus with two alleles, both at a frequency of 5, do you expect your sample to be in Hardy-Weinberg equilibrium? A. Yes B. No, excess of homozygotes C. No, deficiency of homozygotes D.Impossible to predict

Explanation / Answer

A. Yes

Explanation:

They will stay in Hardy-Weinberg equilibrium as long as the frequencies add to 1

According to Hardy-Weinberg law, p+q=1

here, p=0.5 and q=0.5 (for one locus with two alleles i.e "A" i.e AA=p and "a" i.e aa=q ) , p+q=0.5+0.5=1

All 5 asumptions (those are - 1. no genetic drift, 2. a closed population, 3. mutation don't happen, 4. random mating patterns, 5. no natural selection ) are need to be evoked to be in Hardy-Weinberg equilibrium. Here the questions says that, there is no movement of individuals between them. Therefore, assumptions are evoked.

A population in which the allele frequencies remain constant from generation after generationand in which genotype frequencies can be predict from the allele frequencies is said to be in the state of Hardy-Weinberg equilibrium for that locus. As here, question says, the population is A Single Continuous Population.

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