DNA Structure and Replication
DNA replication results in

two DNA molecules such that each one contains a strand of the original
two completely new DNA molecules
one new DNA molecules 1 old molecule
one new molecule of RNA

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DNA Structure and Replication
In a typical electrophoresis experiment, larger fragments of DNA move more

slowly, so they appear nearer the top of a gel photograph
slowly, so they appear nearer the bottom of a gel photograph
quickly, so they appear nearer the bottom of a gel photograph
quickly, so they appear nearer the top of a gel photograph

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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?

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

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