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Molecular 5 Points: 8/8 1. Which of the following is true about DNA polymerase? (1/1 Points) It can synthesize DNA in the 5’ to 3’ direction It can synthesize DNA in the 3’ to 5’ direction It can synthesize mRNA in the 3’ to 5’ direction It can synthesize mRNA in the 5’ to 3’ direction 2. What is the reaction in DNA replication catalyzed by DNA ligase? (1/1 Points) Addition of new nucleotides to the leading strand Addition of new nucleotide to the lagging strand Formation of a phosphodiester bond between the 3’-OH of one Okazaki fragment and the 5’-phosphate of the next on the lagging strand Base pairing of the template and the newly formed DNA strand 3. Which of the following enzymes remove supercoiling in replicating DNA ahead of the replication fork? (1/1 Points) DNA polymerases Helicases Primases Topoisomerases 4. Which enzyme used to join bits of DNA? (1/1 Points) DNA polymerase DNA ligase Endonuclease Primase 5. Name the protein, which is responsible for the formation of RNA primer? (1/1 Points) Topoisomerase Gyrase Helicase Primase 6. What is the role of topoisomerases in eukaryotic DNA replication? (1/1 Points) Topoisomerise enzymes cut, uncoil and reseal the double stranded DNA Topoisomerise enzymes bind to the origin of replication sites within double stranded DNA Topoisomerise enzymes open up the double stranded DNA at the replication fork Topoisomerise enzymes open up the double stranded DNA at the replication fork 7. What is the function of enzyme involved in base excision repair? (1/1 Points) Addition of correct base Addition of correct nucleotide Removal of incorrect base Removal of phosphodiester bond 8. An apyrimidinic or apurinic (AP) site forms in which type of DNA repair? (1/1 Points) Base excision repair Photoreactivation Mismatch repair Nucleotide excision repair Go back to thank you page This content is created by the owner of the form. The data you submit will be sent to the form owner. Microsoft is not responsible for the privacy or security practices of its customers, including those of this form owner. Never give out your password. Powered by Microsoft Forms | Privacy and cookies (https://go.microsoft.com/fwlink/p/?linkid=857875) | Terms of use (http://go.microsoft.com/fwlink/p/?LinkId=2083423)
