Question Detail

BIO 101 Last Min Prep Objective Question

Question

DNA replication involves the breaking of bonds between: a. bases b. sugars and bases c. phosphates and bases d. sugars and phosphates
Options
A bases
Correct Answer
B sugars and bases
C phosphates and bases
D sugars and phosphates
Correct Answer

Option A is the correct answer.

Detailed Explanation

To begin DNA replication, the hydrogen bonds between complementary bases (A-T and G-C) must be broken. This allows the two strands to separate so they can serve as templates. The bonds in the sugar-phosphate backbone are not broken during this initial step.

Hint

The bonds that hold the two strands together are between the bases.

Question Info