DNA Structure and Replication What is the approximate percentage of repetitive DNA sequences in human DNA? 10 to 20% 40 to 50% 30 to 40% 20 to 30% 10 to 20% 40 to 50% 30 to 40% 20 to 30% ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication In a cesium chloride gradient, DNA labeled with 15N and centrifuged will form a band all of these below DNA containing 14N above DNA containing 14N with 14N-containing DNA all of these below DNA containing 14N above DNA containing 14N with 14N-containing DNA ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication The nicks or gaps between Okazaki fragments are eventually sealed by gyrase RNA ligase polymerase DNA ligase gyrase RNA ligase polymerase DNA ligase ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication Which of the following is used to determine the appropriate stringency (Wallace rule)? Tm = 4 x (No.of A:T base pair) + 2 x (No.of G:C base pair) Tm = 4 x (No.of G:C base pair) + 2 x (No.of A:T base pair) Tm = 69.3° + 0.41 (%)G+C -650/1 Tm = 2 x (No.of G:C base pair) + 4 x (No.of A:T base pair) Tm = 4 x (No.of A:T base pair) + 2 x (No.of G:C base pair) Tm = 4 x (No.of G:C base pair) + 2 x (No.of A:T base pair) Tm = 69.3° + 0.41 (%)G+C -650/1 Tm = 2 x (No.of G:C base pair) + 4 x (No.of A:T base pair) ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication In sperm heads, DNA is particularly highly condensed and the histones are replaced with small basic protein called protamines purines All of these pyrimidines protamines purines All of these pyrimidines 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 The RNase H domain of p66 causes error prone synthesis It lacks a proofreading exonuclease AZT (zidovudine) is too expensive to be taken in effective doses It has low affinity for the correct dNTP's The RNase H domain of p66 causes error prone synthesis It lacks a proofreading exonuclease AZT (zidovudine) is too expensive to be taken in effective doses ANSWER DOWNLOAD EXAMIANS APP
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