Question

T or F, migration can occur at any phase, causes HW disequilibrium, changes allele frequencies between generations, violated HW principles

Answer 1

Migration is a factor that leads to Hardy-Weinberg disequilibrium and changes in allele frequencies, indicating that a population is evolving.

Step-by-step explanation:

True, migration can occur at any phase, causes Hardy-Weinberg (HW) disequilibrium, changes allele frequencies between generations, and violates HW principles. Migration, also known as gene flow, is one of the evolutionary forces that can lead to changes in allele frequencies in a population. When individuals move into or out of a population, they can introduce new alleles or alter the prevalence of existing ones, thereby disrupting the HW equilibrium. The HW principle postulates that allele and genotype frequencies should remain constant from one generation to the next unless acted upon by factors like genetic drift, natural selection, mutation, and migration. Therefore, a population that experiences migration will not meet the conditions of Hardy-Weinberg Equilibrium, indicating that it is evolving.

Answer 2

True, migration causes Hardy-Weinberg disequilibrium by changing allele frequencies and violating its principles. It is one of several mechanisms, including natural selection, genetic drift, and mutation, which together can drive evolution in a population.

Step-by-step explanation:

Migration can indeed occur at any phase and causes Hardy-Weinberg (HW) disequilibrium. It is true that migration changes allele frequencies between generations and violates HW principles. Gene flow, which includes migration, is one of the mechanisms along with natural selection, genetic drift, and mutation, that can cause evolution in a population by altering allele frequencies. When individuals move into or out of a population, they bring their alleles with them, which changes the allele frequencies within that population.

Mutation is the change in DNA sequence that affects genetic information and is a significant source of genetic diversity. Genetic drift results in random changes in allele frequencies, especially in small populations, and can lead to evolution over time. On the other hand, natural selection is the process by which traits that enhance survival and reproduction become more common in successive generations. Each of these mechanisms can disrupt the equilibrium described by the Hardy-Weinberg principle, which states that a population's allele and genotype frequencies will remain constant in the absence of these evolutionary forces.