An isolate of a mutant bacterium appears to grow more slowly than the wild-type population from which it was isolated.Further studies showed that the slower growth was due to a markedly reduced DNA polymerase I activity.From this information,one would expect that this organism would also be deficient in the activity of DNA
A)excision repair.
B)recombination.
C)transcription.
D)translation.
E)unwinding.

Question

Quizplus · Accepted Answer

DNA polymerase I plays a crucial role in the excision repair process by filling in the gaps left after damaged DNA has been excised. Therefore, a deficiency in DNA polymerase I activity would likely impair the bacterium's ability to perform excision repair.

An Isolate of a Mutant Bacterium Appears to Grow More