Exact DNA replication is possible because of the
A) accuracy of the messenger RNA copies of DNA
B) exact complementary pairing of nitrogenous bases in the two DNA strands
C) presence of control processes in the nucleolus
D) activation of codons by the ribosomes
E) accuracy of transcription and translation

Question

Quizplus · Accepted Answer

The exact complementary pairing of nitrogenous bases (adenine with thymine and guanine with cytosine) in the two DNA strands allows for exact DNA replication, as each strand serves as a template for the synthesis of a new complementary strand. The accuracy of transcription and translation relates more to the synthesis of proteins, rather than DNA replication. Control processes in the nucleolus and activation of codons by ribosomes also do not directly relate to DNA replication.

Exact DNA Replication Is Possible Because of the