Question

select the correct answer.
what does the hardy-weinberg principle relate to?
a. chances of survival of an organism
b. frequency of alleles in a population
c. natural selection in a species
d. causes of evolution among organisms

Explanation:

The Hardy - Weinberg principle is a fundamental concept in population genetics. It provides a mathematical model to describe the relationship between allele frequencies and genotype frequencies in a non - evolving population. The principle states that under certain conditions (no mutation, no migration, large population size, random mating, and no selection), the frequencies of alleles and genotypes in a population will remain constant from generation to generation.

• Option A: The Hardy - Weinberg principle is not directly about the chances of survival of an organism. It is more about genetic equilibrium in a population rather than individual survival.
• Option B: This is correct. The principle specifically relates to the frequency of alleles (and genotypes) in a population.
• Option C: Natural selection is one of the factors that can disrupt the Hardy - Weinberg equilibrium. The principle itself is not about natural selection but about a state of genetic equilibrium in the absence of such factors.
• Option D: The Hardy - Weinberg principle is about a non - evolving state (a null model). It does not explain the causes of evolution among organisms. Evolutionary forces like mutation, migration, selection, etc., are factors that deviate from the Hardy - Weinberg equilibrium.

Answer:

B. frequency of alleles in a population