Question

Which of the following evolutionary mechanisms acts to slow down or prevent the evolution of reproductive isolation?

• A. Natural selection
• B. Gene flow
• C. Mutation
• D. Genetic drift

Answer 1

The correct option is B

Gene flow

The correct option is B:

Explanation of the correct option :

1. Gene flow is also called migration.
2. It describes any movement of genes from one population to another.
3. Other options have a role to play in isolation

Explanation of the incorrect option:

Option A:

Natural selection is the process through which populations of living organisms adapt and change.

Option C:

A mutation is a change in the structure of a gene, the unit of heredity.

Option D:

Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance.

Final answer:

Gene flow is the evolutionary mechanism that acts to slow down or prevent the evolution of reproductive isolation.