True or false: population evolution

Exercise and reference answers

Questions

1. Statement is true

   Yes

   Statement

   The gene pool is all the alleles in a population.

2. Statement is true

   Yes

   Statement

   Directional selection favours one end of the range.

3. Statement is true

   No

   Statement

   Genetic drift always improves a population.

4. Statement is true

   No

   Statement

   Drift and natural selection never occur together.

5. Statement is true

   Yes

   Statement

   Sexual dimorphisms are differences between the sexes.

Instructions

Tap True or False for each statement.

Explanation