DNA Structure and Replication
Which of the following are short nucleotides strands made by DNA polymerase working in the opposite direction of the replication fork?

Primers
Okazaki fragments
Leading strands
Lagging strand

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DNA Structure and Replication
In DNA, nucleotides are covalently joined together by

3', 4' phosphodiester bonds to form a repetitive sugar-phosphate chain
3', 5' phosphodiester bonds to form a repetitive sugar-phosphate chain
2', 3' phosphodiester bonds to form a repetitive sugar-phosphate chain
2', 5' phosphodiester bonds to form a repetitive sugar-phosphate chain

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DNA Structure and Replication
The rapid appearance of HIV-1 strains that are resistant to AIDS drugs is due in part to which of the following property of its reverse transcriptase?

The RNase H domain of p66 causes error prone synthesis
AZT (zidovudine) is too expensive to be taken in effective doses
It has low affinity for the correct dNTP's
It lacks a proofreading exonuclease

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