In the construction of a transgenic cell, a gene that enables growth on arabinose is added to the vector. This gene is being used as a
A) transformation agent.
B) selectable marker.
C) replicon.
D) cloning vector.
E) expression vector.

Question

Quizplus · Accepted Answer

The gene that enables growth on arabinose is being used as a selectable marker. This means that cells that have successfully incorporated the vector containing the gene and can grow on arabinose can be selected for, while cells that did not incorporate the vector or do not have the gene cannot grow and will be eliminated.

In the Construction of a Transgenic Cell, a Gene That