What Discovery Suggested the Presence of Other DNA Polymerases in Bacteria

Multiple Choice

What discovery suggested the presence of other DNA polymerases in bacteria besides the Kornberg DNA polymerase enzyme?

A) Kornberg DNA polymerase mutants died.
B) Kornberg DNA polymerase mutants grew much more slowly.
C) Mutants with <1% of the normal Kornberg DNA polymerase enzyme activity multiplied at a normal rate.
D) Mutants with <1% of the normal Kornberg DNA polymerase enzyme activity multiplied at a low rate.
E) Kornberg DNA polymerase mutants reproduced much faster than normal bacteria.