Recall that two hydrogen bonds bind A and T, but three hydrogen bonds bind G and C.Since the stability of DNA is affected by the number of hydrogen bonds, with more bonds promoting more stability, which of the following double-stranded DNA molecules would likely have the greatest stability?
A) A molecule with 20 percent A
B) A molecule with 26 percent G
C) A molecule with 32 percent C
D) A molecule with 38 percent T
E) More information is required to answer the question.

Question

Quizplus · Accepted Answer

A molecule with 32 percent C would have 32 percent G, resulting in 64 percent of the bases forming three hydrogen bonds, providing greater stability.

Recall That Two Hydrogen Bonds Bind a and T, but Three