DNA Structure and Replication What is the range of melting point temperatures (Tm) for most DNA molecules? 80 to l00°C 60 to 80°C 70 to 90°C 50 to 60°C 80 to l00°C 60 to 80°C 70 to 90°C 50 to 60°C ANSWER DOWNLOAD EXAMIANS APP
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 has low affinity for the correct dNTP's AZT (zidovudine) is too expensive to be taken in effective doses The RNase H domain of p66 causes error prone synthesis It lacks a proofreading exonuclease It has low affinity for the correct dNTP's AZT (zidovudine) is too expensive to be taken in effective doses The RNase H domain of p66 causes error prone synthesis It lacks a proofreading exonuclease ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication An RNA primer is synthesized by DNA helicases ligase DNA topoisomerase primase DNA helicases ligase DNA topoisomerase primase ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication Which of the following enzyme adds complementary bases during replication? Synthesase Replicase Helicase Polymerase Synthesase Replicase Helicase Polymerase ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication What is the only common methylation in the DNA of eukaryotes? Guanosine in ApGpA trinucleotides Adenosine in GpA dinucleotides Cytosine in CpG dinucleotides None of these Guanosine in ApGpA trinucleotides Adenosine in GpA dinucleotides Cytosine in CpG dinucleotides None of these ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication What bands will be observed in a cesium chloride gradient after two rounds of replication? One light, one medium and one heavy band One medium and one heavy band One medium band One light and one medium band One light, one medium and one heavy band One medium and one heavy band One medium band One light and one medium band ANSWER DOWNLOAD EXAMIANS APP
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