Suppose that a mistake made during DNA replication in a cell is not corrected, but instead the

mutation remains in the single strand where it occurred. Then suppose that after the cell divides both
daughter cells survive, and those cells then go on to have DNA replication and ultimately cell division.
There are now four cells where there once was one cell. Assuming that the mistake was never
corrected and that no new uncorrected mistakes occurred, how many of the four cells will have the
mutation in their DNA?



a. none
b. one
c. two
d. three
e. four


C

Biology & Microbiology

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