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MCQs

Total Questions : 14 | Page 2 of 2 pages
Question 11.  Which of the following amino acids can interact with the DNA or RNA nucleotide bases via hydrogen bonding?
  1.    Asn and Gln
  2.    Cys and Met
  3.    Lys and Leu
  4.    Ile and Val
 Discuss Question
Answer: Option A. -> Asn and Gln
Question 12. . The enzyme that joins DNA cuts is called
  1.    joinase
  2.    ligase
  3.    DNA phosphorylase
  4.    reverse transcriptase
 Discuss Question
Answer: Option B. -> ligase
Question 13. . Cleavage of DNA by EcoRI endonuclease results in the formation of
  1.    two 3'-OH ends and two 5'-phosphate ends
  2.    one 3'-OH end and one 5'-phosphate end
  3.    two 3'-phosphate ends and two 3'-OH ends
  4.    one 3'-OH end and two 5'-phosphate end
 Discuss Question
Answer: Option A. -> two 3'-OH ends and two 5'-phosphate ends
Question 14. . Which of the following amino acids interact with the DNA or RNA backbone (i.e. phosphate)?
  1.    Ile and Val
  2.    Lys and Arg
  3.    Leu and Ala
  4.    Cys and Met
 Discuss Question
Answer: Option B. -> Lys and Arg

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