Question

Which best describes a difference between transcription and DNA replication?

A. DNA replication produces mRNA.
B. They use different nucleotide bases.
C. Transcription does not use DNA.
D. Only DNA replication happens in the nucleus.

Answer 1

The answer is: [B]: They use different nucleotide bases.
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Specifically, DNA replication uses thymine; whereas transcription uses uracil.
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Answer 2

Ans. (B). They use different nucleotide bases.

DNA replication involves synthesis of DNA molecules, while transcription is a process that involves synthesis of RNA molecules. In both processes, DNA acts as template and provides information for synthesis of new daughter DNA or RNA strand.

Process of replication and transcription differs from each other as each process uses different nucleotide bases. This is because, nucleotide bases in DNA include adenine, guanine, cytosine, and thymine, while in RNA uracil is present instead of thymine along with three similar bases.

Thus, the correct answer is option (B).