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MCQs

Total Questions : 26 | Page 1 of 3 pages
Question 1. In DNA sequencing, the primer
  1.    generates variety of different sized fragments
  2.    both (a) and (b)
  3.    specifies where the sequence begins
  4.    specifies where the sequence ends
 Discuss Question
Answer: Option C. -> specifies where the sequence begins
Question 2. In which of the following uracil is present?
  1.    DNA
  2.    RNA
  3.    Both (a) and (b)
  4.    None of these
 Discuss Question
Answer: Option B. -> RNA
Question 3. Guanine always binds to
  1.    thymine
  2.    none of these
  3.    cytosine
  4.    guanine
 Discuss Question
Answer: Option C. -> cytosine
Question 4. To which of the following adenine always binds?
  1.    None of these
  2.    Cytosine
  3.    Thymine
  4.    Guanine
 Discuss Question
Answer: Option C. -> Thymine
Question 5. The chromosome of almost all bacteria is in the shape of
  1.    a linear chromosome
  2.    an open circle
  3.    helix
  4.    a closed circle
 Discuss Question
Answer: Option D. -> a closed circle
Question 6. The function of ribosomes within the cell is
  1.    to ferment carbohydrates
  2.    all of these
  3.    to produce ATP
  4.    to synthesize proteins
 Discuss Question
Answer: Option D. -> to synthesize proteins
Question 7. According to base pairing rules the bases of one strand match-up with the bases of the second strand of DNA and the two strands are said to be
  1.    identical
  2.    oppositely charged
  3.    complementary
  4.    none of these
 Discuss Question
Answer: Option C. -> complementary
Question 8. Which is not an essential part of a two-component phosphorelay system?
  1.    Response regulator
  2.    None of these
  3.    Autoinducer
  4.    Sensor kinase
 Discuss Question
Answer: Option C. -> Autoinducer
Question 9. RNA that is complementary to a segment of another RNA molecule to which it will bind is known as
  1.    missense RNA
  2.    none of these
  3.    nonsense RNA
  4.    antisense RNA
 Discuss Question
Answer: Option D. -> antisense RNA
Question 10. The DNA that actually codes for a protein's primary structure in eukaryotes is
  1.    the promoter
  2.    portions of the gene called exons
  3.    portions of the gene called introns
  4.    the entire gene
 Discuss Question
Answer: Option B. -> portions of the gene called exons

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