During DNA replication,
A) tRNAs bring specific amino acids to an mRNA molecule.
B) two single strands of DNA come together, restoring complementary base pairing.
C) amino acids are joined.
D) the DNA double helix comes apart where hydrogen bonds join base pairs, and new nucleotides are brought in, forming two double helices.

Question

Quizplus · Accepted Answer

During DNA replication, the DNA double helix comes apart where hydrogen bonds join base pairs, and new nucleotides are brought in, forming two double helices. This process is carried out by the enzyme DNA polymerase. Choice A is incorrect because tRNAs do not play a role in DNA replication, but rather in protein synthesis. Choice B is incorrect because it describes the process of DNA repair, not replication. Choice C is incorrect because amino acids are not joined during DNA replication, but rather during protein synthesis.

During DNA Replication