1.

When this single strand binds to a complementary DNA strand,

A. the complementary strand has the sequence 5 -(CT)20-3 and a cruciform structure could form.
B. the complementary strand has the sequence 5 -(CT)20-3 and a Z-DNA structure could form.
C. the complementary strand has the sequence 5 -(TC)20-3 and an H-DNA structure could form.
D. the complementary strand has the sequence 5 -(TC)20-3 and a hairpin structure could form.
Answer» D. the complementary strand has the sequence 5 -(TC)20-3 and a hairpin structure could form.


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