If a cell had a single nonfunctional DNA repair enzyme, how would that cell be affected?
A)The cell could not possibly be viable without that DNA repair enzyme.
B)Mutations during DNA replication would not be repaired, so replication and therefore division would not be possible.
C)The cell's other DNA repair enzymes would most likely compensate and cell viability would be maintained.
D)DNA polymerase would re-replicate any damaged regions of DNA.

Question

Quizplus · Accepted Answer

Cells have multiple DNA repair mechanisms, so if one enzyme is nonfunctional, others can often compensate, maintaining cell viability.

If a Cell Had a Single Nonfunctional DNA Repair Enzyme