Question

Which strand of mRNA would be made during transcription using the DNA strand shown below? CGA TCT

Answer 1

The correct answer for the question that is being presented is this one: "a. GCU AGA." The strand of mRNA that would be made during transcription using the DNA strand, 'CGA TCT ' is this:  GCU AGA.

Cytosine is paired with Guanine,
Adenine is paired with Uracil.
Thymine is paired with Adenine.

Answer 2

The answer is d. GCU UGU

Transcription is a process of copying DNA into mRNA. DNA contains two complementary strands. Complementarity is achieved through interactions between nucleobases. In the DNA, base complements are adenine - thymine and guanine - cytosine. In the RNA, base complements are adenine - uracil and guanine -cytosine. During the transcription, bases complementary to a template DNA strand pairs to form mRNA.
In this case, if DNA strand is CGA TCT, mRNA strand will be GCU UGU:
DNA: CGA TCT
RNA: GCU UGU