If Complementary DNA Strands Were Arranged in a Parallel Manner,what

question 21

Multiple Choice

If complementary DNA strands were arranged in a parallel manner,what would you expect to see?

• A)Complementary nucleotides would be attracted to each other,forming ionic bonds that would make the helix stable but not uniform in width.
• B)Charges of complementary nucleotides would repel and no hydrogen bonds would form.
• C)Complementary nucleotides would line up properly;but fewer hydrogen bonds would form,so the strands could be more easily pulled apart.
• D)Purines would pair with both purines and pyrimidines due to the closer alignment of the parallel strands.
• E)There would be no discernable difference between DNA strands aligned in a parallel versus antiparallel manner.

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