Question

question 6 of 10
what happens when a population is in hardy weinberg equilibrium?

a. the amount of immigration equals the amount of emigration.

b. the distribution of alleles does not change from one generation to the next.

c. the total number of organisms in the population does not change.

d. the organisms with recessive traits do not reproduce

Explanation:

The Hardy - Weinberg principle states that in the absence of evolutionary forces (like mutation, natural selection, gene flow, non - random mating, and genetic drift), the allele frequencies in a population will remain constant from one generation to the next.

• Option A: Equal immigration and emigration is not a defining feature of Hardy - Weinberg equilibrium. The Hardy - Weinberg principle is about allele and genotype frequencies, not migration balance in this way.
• Option B: This matches the definition of Hardy - Weinberg equilibrium as allele frequencies stay the same across generations.
• Option C: The total number of organisms in the population is not a factor considered in Hardy - Weinberg equilibrium. It is about the frequency of alleles, not population size.
• Option D: In Hardy - Weinberg equilibrium, there is no restriction on organisms with recessive traits from reproducing. All individuals are assumed to reproduce randomly.

Answer:

B. The distribution of alleles does not change from one generation to the next.