Test: SAT II Biology M

1.

With respect to DNA, the terms 3' and 5' (pronounced 3-prime and 5-prime, respectively) are used in order to refer to one strand or the other. What do these two terms signify?

3' refers to the unbound sulfhydral group and 5' refers to the unbound phosphate group at the end of each DNA strand.

3' refers to the unbound phosphate group and 5' refers to the unbound hydroxyl group at the end of each DNA strand.

3' refers to the unbound methyl group and 5' refers to the unbound hydroxyl group at the end of each DNA strand.

3' refers to the unbound hydroxyl group and 5' refers to the unbound carboxyl group at the end of each DNA strand.

3' refers to the unbound hydroxyl group and 5' refers to the unbound phosphate group at the end of each DNA strand.

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