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Under ____, the frequency of ______ in the next generation is expected to be the current allele frequency, but it will probably be different.
a. 23
b. 28
c. 27
d. 32

Answer :

Final answer:

The question relates to the concept of allele frequency changes over time in the field of population genetics, with the correct option being c. 27. It highlights the dynamics of allele frequencies in populations and how they are expected to remain constant according to the Hardy-Weinberg equilibrium unless affected by factors like genetic drift or natural selection.

Explanation:

The correct option is c. 27. Under these conditions, the frequency of alleles is expected to be the same in the next generation as the current allele frequency, showcasing an important concept in population genetics known as Hardy-Weinberg equilibrium. However, due to factors like genetic drift, especially in small populations, allele frequencies are likely to vary. An example of this phenomenon can be seen when allele A's frequency changes from 0.6 to 0.62, while allele a's frequency changes from 0.4 to 0.38.

This illustrates how even slight changes can lead to evolution in a population, defined as a change in allele frequencies over time. Therefore, under normal circumstances, without external pressures or small population size, allele frequencies are expected to remain constant from one generation to the next, according to Hardy-Weinberg Equilibrium principles.

However, in real-world scenarios, several factors can affect allele frequencies, including natural selection, mutation, migration, genetic drift, and non-random mating. These factors can lead to deviations from the Hardy-Weinberg Equilibrium, causing allele frequencies to change over time, which is a key driver of evolution.

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