Direct selection involves inoculating cells onto growth media on/in which
A) the mutant but not the parental cell type will grow.
B) the mutation will be reversed.
C) the nutrients necessary for mutation to occur are present.
D) the mutagen is present.
E) histidine has been added.

Question

Quizplus · Accepted Answer

Direct selection involves selecting for a specific phenotype by growing cells on a medium that will only support the growth of the desired type of cell. In this case, the medium is designed to allow the growth of the mutant cell type, but not the parental cell type. Therefore, choice A is the correct answer. Choices B, C, D, and E are not directly related to direct selection.

Direct Selection Involves Inoculating Cells onto Growth Media On/in Which