Question

Analyze the following statements. Which of them is correct with respect to the RNA transcript formed by means of transcription?

A) The RNA transcript is an exact replica of the DNA from which it is transcribed. It has the same sequence as that of its parent DNA strand.

B) The RNA transcript is complimentary to the DNA from which it is transcribed. Instead of thymine, it has uracil, which complements the adenine of DNA.

C) The RNA transcript is an exact replica of the DNA from which it is transcribed. Instead of adenine, it has uracil, which complements the thymine of DNA.

Answer 1

Hello,

RNA, and DNA are very different. In DNA you may know the base pairings called ATCG. (A goes with T, C goes with G). In RNA is it, AUCG, where (A goes with U, and C goes with G).

In RNA:
A is adenine which links to thymine (T).
C is cytosine which links to guanine (G).

In RNA:
A is adenine which links to uracil (U).
C is cytosine which links to guanine (G).

So this crosses out answer choice \(a\) and \(c\). Leaving us with answer choice \(b\).

Peace.