Question

Evolution takes place because of

• A. acquired characters
• B. genetic drift
• C. phenotypic variation
• D. overuse of organs

Answer 1

The correct option is B

genetic drift

The correct option is B.

Explanation of the correct option :

1. Genetic drift is a mechanism of evolution.
2. It refers to random fluctuations in the frequencies of alleles from generation to generation due to chance events.
3. Genetic drift can cause traits to be dominant or disappear from a population.

Explanation of the incorrect option:

Option A:

It is the character that a person develops during his lifetime.

Option C:

It is the variability in phenotypes that exists in a population.

Option D:

It is the use of organs repeatedly.

Final answer: Evolution takes place because of genetic drift.