Question

A DNA strand has the sequence ACCGAGCTT. Which is the complementary strand of RNA?

A. TGGCTCGAA
B. UGGCUCGAA
C. GTTAGTGCC
D. CAATCTAGG

Answer 1

Answer:
A

Explanation:
A(adenine) form 2 hydrogen bond with T(thymine)
G(guanine) form 3 hydrogen bond with C(cytosine)

Answer 2

Answer:

B: UGGCUCGAA

Explanation:

In the RNA strand, the complementary strand would be B, because-

A=U

G=C

C=G

T=A

Plug in the complementary letters and you will get your answer.

Hope this helps!

Tip: the only thing different between finding the complementary RNA strand and the DNA strand is that A=T in the DNA strand, because there is no uracil(U). Everything else is the same.