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MCQs

Total Questions : 26 | Page 3 of 3 pages
Question 21. . The DNA that actually codes for a protein's primary structure in eukaryotes is
  1.    the entire gene
  2.    portions of the gene called introns
  3.    portions of the gene called exons
  4.    the promoter
 Discuss Question
Answer: Option C. -> portions of the gene called exons
Question 22. . Stem and loop structures are
  1.    proteins that help partially denatured enzymes to recover their native configuration
  2.    structures in DNA caused by inverted repeats
  3.    structures at the ends of linear eukaryotic DNA molecules
  4.    the bonds between adjacent DNA nucleotides in the same strand
 Discuss Question
Answer: Option B. -> structures in DNA caused by inverted repeats
Question 23. . RNA that is complementary to a segment of another RNA molecule to which it will bind is known as
  1.    missense RNA
  2.    antisense RNA
  3.    nonsense RNA
  4.    none of these
 Discuss Question
Answer: Option B. -> antisense RNA
Question 24. . Which is not an essential part of a two-component phosphorelay system?
  1.    Response regulator
  2.    Sensor kinase
  3.    Autoinducer
  4.    None of these
 Discuss Question
Answer: Option C. -> Autoinducer
Question 25. . The DNA that actually codes for a protein's primary structure in eukaryotes is
  1.    the entire gene
  2.    portions of the gene called introns
  3.    portions of the gene called exons
  4.    the promoter
 Discuss Question
Answer: Option C. -> portions of the gene called exons
Question 26. . Stem and loop structures are
  1.    proteins that help partially denatured enzymes to recover their native configuration
  2.    structures in DNA caused by inverted repeats
  3.    structures at the ends of linear eukaryotic DNA molecules
  4.    the bonds between adjacent DNA nucleotides in the same strand
 Discuss Question
Answer: Option B. -> structures in DNA caused by inverted repeats

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