DNA Structure and Replication E.coli DNA polymerases II and III lack partially 5' → 3' exonuclease activity partially 5' → 3' endonuclease activity 5' → 3' endonuclease activity 5' → 3' exonuclease activity partially 5' → 3' exonuclease activity partially 5' → 3' endonuclease activity 5' → 3' endonuclease activity 5' → 3' exonuclease activity ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication After one replication in 15N, how many bands should be observed in a cesium chloride gradient? Three Two A smear One Three Two A smear One ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication The role of primase is to dismantle RNA primer cleave and unwinds short sections of DNA ahead of the replication fork proofread base pairing synthesize an RNA primer to begin the elongation process dismantle RNA primer cleave and unwinds short sections of DNA ahead of the replication fork proofread base pairing synthesize an RNA primer to begin the elongation process 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 = 2 x (No.of G:C base pair) + 4 x (No.of A:T 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 = 4 x (No.of A:T base pair) + 2 x (No.of G:C base pair) Tm = 2 x (No.of G:C base pair) + 4 x (No.of A:T 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 ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication Which DNA polymerase removes RNA primers in DNA synthesis? Polymerase III Polymerase II none of these Polymerase I Polymerase III Polymerase II none of these Polymerase I ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication How does ethidium bromide interact with DNA? It does not interact It binds to phosphate It binds to adenine It intercalates between bases It does not interact It binds to phosphate It binds to adenine It intercalates between bases ANSWER DOWNLOAD EXAMIANS APP