DNA Structure Activity

Problem 10: Features of the Watson-Crick Model for DNA structure

Which of the following is correct about the Watson-Crick model of DNA?

A. The backbone of each DNA strand is a repeating sugar-phosphate polymer.
B. The strands of DNA are anti-parallel, spiraling around the helix axis in opposite directions.
C. The sequences of bases in the two strands are determined by hydrogen bonding between adenine and thymine or guanine and cytosine.
D. The sugar involved in the backbone structure is deoxyribose.
E. All are correct features of DNA structure.

The Biology Project
University of Arizona
Modified: May 27, 1997
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