During mRNA transcription, a DNA strand has the bases CTAGGT. What is the complementary strand of mRNA?
DtmpOP_634d3d8f27d6f.gif
a
GATCCA
b
GAUCCA
c
TCGAAC
d
AGCTTG
The complementary strand of mRNA would be the one that follows the base pairing rules. In RNA, adenine (A) pairs with uracil (U) instead of thymine (T).
Therefore, the complementary strand of mRNA for the DNA strand CTAGGT would be GAUCCA.
So the correct answer is option b) GAUCCA.