An RNA-dependent DNA polymerase that carries the RNA template with it to synthesize repeats at the 3'-ends of chromosomes is called: telomerase topoisomerase DNA ligase DNA polymerase γ (gamma).
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An RNA-dependent DNA polymerase that carries the RNA template with it to synthesize repeats at the 3'-ends of chromosomes is called:
-
telomerase
-
topoisomerase
-
DNA ligase
-
DNA polymerase γ (gamma).
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- . During DNA repair in prokaryotes and eukaryotes, which of the following enzymes replaces the damaged nucleotides, that were excised from the DNA strand, by inserting the correct nucleotides? topoisomerase DNA polymerase DNA helicase an exonuclease DNA ligaseThe epsilon subunit of DNA polymerase III is responsible for its _______ activity.A-5'---->3' polymerase B- Sliding clampC-3'----->5' exonuclease activity D-5'------>3' exonuclease activityDuring DNA replication in E. coli, which enzyme forms the phosphodiester bond between an RNA primer and the first incoming deoxyribonucleotide for an Okazaki fragment on the lagging strand? topoisomerase DNA polymerase III DNA helicase DNA polymerase II DNA ligase
- The linking of the 5’ end of one Okazaki fragment with the 3’ end of an adjacent Okazaki fragment occurs by means of (a) DNA polymerase I (b) DNA polymerase III (c) DNA ligase (d) DNA topoisomerase (e) PrimaseThe topoisomerase enzyme catalyzes the interconversion of the relaxed and supercoiled forms of DNA by making transient breaks in one or both DNA strands. What is the difference between I and II?The following enzymes cannot catalyze the synthesis of DNA A.DNA polymerase B.DNA gyrase C.DNA ligase D.Helicase
- Which of the following enzymes has 5’ to 3’ exonuclease activity? DNA ligase DNA polymerase I Telomerase Primase DNA polymerase IIIDuring high stress environments, it has been found that some bacteria activate a genetic mechanism that allows them to incorporate more mutations into the DNA during replication. Would the following two enzymes be impacted by such a mechanism? (i)DNA polymerase IIIii) HelicaseWhich of the following enzymes is responsible for ensuring that genetic material at the end of the chromosome is not lost during DNA replication? a. Helicase b. DNA Polymerase c. Telomerase d. DNA Ligase e. Primase
- The RNA primer at the beginning of each Okazaki fragment is removed by A. DNA polymerase III B. DNA polymerase II C. DNA polymerase I D. 3' → 5' exonuclease subunit of DNA polymerase IIISuppose the gaps between the Okazaki fragments are not sealed and a continuous strand does not form. You could conclude that this is due to a mutation for which enzyme? DNA polymerase DNA helicase DNA ligase RNA primaseThe enzyme responsible for the joining of Okazaki fragments is a. helicase b. primase c. DNA ligase d. DNA topoisomerase