In order for the scientists to artificially select Drosophila for their number of bristles,
A)they had to induce mutations into their populations of Drosophila.
B)they had to study the population for millions of years.
C)genetic variation had to be present in the population.
D)dramatic mutations had to be produced by the selection.

Question

Quizplus · Accepted Answer

Genetic variation must be present in a population for artificial selection to be effective, as it provides the different traits that can be selected for.

In Order for the Scientists to Artificially Select Drosophila for Their