Researchers Found E

Multiple Choice

Researchers found E.coli that had mutation rates 100 times higher than normal.What is a possible explanation for these results?

A) The single-stranded binding proteins were malfunctioning.
B) There were one or more mismatches in the RNA primer.
C) The proofreading mechanism of DNA polymerase was not working properly.
D) The DNA polymerase was unable to add bases to the 3′ end of the growing nucleic acid chain.