DNA Structure and Replication
One hypothesis of DNA replication suggested that the parental DNA molecules are broken into fragments. Both strands of DNA in each of the daughter molecules are made up of an assortment of parental and new DNA. This statement refers to which hypothesis?

Evolutionary theory
Conservative theory
Semi-conservative theory
Dispersive theory

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

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