DNA Structure and Replication In DNA double helix, the two DNA chains are held together by ionic bonds between the pair of bases None of these hydrogen bonds between the pair of bases covalent bonds between the pair of bases ionic bonds between the pair of bases None of these hydrogen bonds between the pair of bases covalent bonds between the pair of bases ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication Which of the following is an active site on its single polypeptide chain for DNA Polymerase I? 3' → 5' exonuclease 5' → 3' exonuclease 5' → 3' polymerase All of these 3' → 5' exonuclease 5' → 3' exonuclease 5' → 3' polymerase All 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 light and one medium band One medium band One medium and one heavy band One light, one medium and one heavy band One light and one medium band One medium band One medium and one heavy band ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication Which enzyme catalyzes the elongation of DNA molecules? Helicase Primase DNA polymerase DNA ligase Helicase Primase DNA polymerase DNA ligase ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication E.coli DNA polymerases II and III lack 5' → 3' exonuclease activity 5' → 3' endonuclease activity partially 5' → 3' exonuclease activity partially 5' → 3' endonuclease activity 5' → 3' exonuclease activity 5' → 3' endonuclease activity partially 5' → 3' exonuclease activity partially 5' → 3' endonuclease activity ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication Klenow fragment without free nucleotides exhibits exonuclease activity no activity endonuclease activity nickase activity exonuclease activity no activity endonuclease activity nickase activity ANSWER DOWNLOAD EXAMIANS APP
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