DNA Structure and Replication E.coli DNA polymerases II and III lack partially 5' → 3' exonuclease activity 5' → 3' endonuclease activity 5' → 3' exonuclease activity partially 5' → 3' endonuclease activity partially 5' → 3' exonuclease activity 5' → 3' endonuclease activity 5' → 3' exonuclease activity partially 5' → 3' endonuclease activity ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication What is the approximate percentage of repetitive DNA sequences in human DNA? 20 to 30% 30 to 40% 40 to 50% 10 to 20% 20 to 30% 30 to 40% 40 to 50% 10 to 20% 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 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 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 ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication Klenow fragment without free nucleotides exhibits exonuclease activity nickase activity no activity endonuclease activity exonuclease activity nickase activity no activity endonuclease activity ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication The DNA is negatively super coiled, complexes to histone, HU HSP-1 All of these H-NS HU HSP-1 All of these H-NS ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication Overwinding or overtightening of DNA during replication is caused and removed by Single stranded protein, DNAa DNAb, gyrase DNAb, DNA polymerase DNAa, gyrase Single stranded protein, DNAa DNAb, gyrase DNAb, DNA polymerase DNAa, gyrase ANSWER DOWNLOAD EXAMIANS APP
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