In the first step of their experiments, Jacob and Monod treated E. coli cells with ultraviolet light or X-rays to ________.
A) decrease the rate of gene expression
B) induce DNA repair enzymes
C) increase the frequency of mutations in all genes
D) selectively mutate specific genes, leaving all other genes unmutated

Question

Quizplus · Accepted Answer

The treatment with ultraviolet light or X-rays was meant to increase the frequency of mutations in all genes, not to decrease the rate of gene expression or induce DNA repair enzymes. The goal was to induce random mutations and observe the effect on the expression of specific genes.

In the First Step of Their Experiments, Jacob and Monod