Question

A researcher analyzes a nucleic acid sample. After looking only at its nucleotide composition, he decisively concludes that this sample represents single-stranded DNA and not another form of nucleic acid. Which of the following compositions most likely represents this sample?

A. 17% A, 17% T, 33% G, 33% C
B. 29% A, 14% U, 11% G, 46% C
C. 4% A, 4% U, 46% G, 46% C
D. 12% A, 12% T, 30% G, 46% C

Answer 1

Answer:

D. 12% A, 12% T, 30% G, 46% C

Explanation:

Both option A and D could represent single strand DNA but since A has equal proportion of A and T/G

C could also represent double stranded DNA.

The best option here is option D.