Mutations are important because they
A) provide variation that can result in evolutionary change.
B) usually provide an individual with increased reproductive rates.
C) are always beneficial to the individuals affected by them.
D) occur in response to environmental demands.

Question

Quizplus · Accepted Answer

Mutations introduce genetic variation into a population, which is a key element for evolutionary processes. This variation can lead to changes in traits that may be beneficial, neutral, or detrimental, depending on the environmental context. However, mutations do not usually guarantee increased reproductive rates (B), are not always beneficial (C), and do not occur in direct response to environmental demands (D).

Mutations Are Important Because They