Which of the following statements about genetic diversity is true?

• A. Genetic diversity increases the adaptability of a population to changing environments.
• B. Genetic diversity is solely determined by the number of individuals in a population.
• C. Genetic diversity decreases the survival chances of a population.
• D. Genetic diversity is unaffected by mutations.

Answer: (A)

Verified step by step guidance

1. Understand the concept of genetic diversity: Genetic diversity refers to the total number of genetic characteristics in the genetic makeup of a species. It is important for the survival and adaptability of a population.
2. Consider the role of genetic diversity in adaptability: Populations with high genetic diversity have a greater variety of traits, which can be beneficial in adapting to changing environments. This increases their chances of survival.
3. Evaluate the statement about population size: While the number of individuals can influence genetic diversity, it is not the sole determinant. Other factors, such as mutations and gene flow, also play significant roles.
4. Analyze the impact of genetic diversity on survival: Genetic diversity generally enhances the survival chances of a population by providing a buffer against environmental changes and diseases.
5. Examine the effect of mutations on genetic diversity: Mutations introduce new genetic variations into a population, thereby increasing genetic diversity. Therefore, genetic diversity is indeed affected by mutations.