What is true about DNA polymerases?
A) There are at least five structural classes.
B) All have finger and thumb domains that wrap around the DNA.
C) All catalyze the same reaction, which requires metal cofactors.
D) All the answers are correct.
E) There are five structural classes, and all catalyze the same reaction, which requires metal cofactors.

Question

Quizplus · Accepted Answer

All the statements about DNA polymerases are correct. They have diverse structural classes, share a common reaction mechanism that requires metal cofactors, and typically have finger and thumb domains that interact with the DNA.

What Is True About DNA Polymerases