DNA Structure and Replication - Medical Science

Q1:

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?

A AZT (zidovudine) is too expensive to be taken in effective doses

B The RNase H domain of p66 causes error prone synthesis

C It lacks a proofreading exonuclease

D It has low affinity for the correct dNTP's

ANS:C - It lacks a proofreading exonuclease

No answer description is available.