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MCQs

Total Questions : 282 | Page 4 of 29 pages
Question 31. Generally a plasmid vector contains how many elements?
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option C. -> 3
Answer: (c).3
Question 32. Which of the following statements is false?
  1.    The cells which take up recombinant plasmids are drug resistant
  2.    The cells with no recombinant plasmids are drug resistant
  3.    Plasmid replication is independent of cell’s division
  4.    The cells containing recombinant plasmid are called transformed cells
 Discuss Question
Answer: Option A. -> The cells which take up recombinant plasmids are drug resistant
Answer: (a).The cells which take up recombinant plasmids are drug resistant
Question 33. The extra chromosomal, self-replicating, closed, double stranded and circular DNA molecule is generally termed as __________
  1.    Chromosome
  2.    Plasmid
  3.    Genomic DNA
  4.    Bacteriophage
 Discuss Question
Answer: Option B. -> Plasmid
Answer: (b).Plasmid
Question 34. To make the recombinant plasmid permeable to DNA molecules, which of the chemicals is added?
  1.    MgCl₂
  2.    CaCl₂
  3.    NaCl
  4.    HCl
 Discuss Question
Answer: Option B. -> CaCl₂
Answer: (b).CaCl₂
Question 35. E.cor1 is a __________
  1.    DNA ligase enzyme
  2.    Restriction endonuclease
  3.    A vector used for insulin synthesis
  4.    A plasmid used as a vector
 Discuss Question
Answer: Option B. -> Restriction endonuclease
Answer: (b).Restriction endonuclease
Question 36. Which of the following endonuclease removes a length of DNA between two telomere sequences?
  1.    EcoR1
  2.    EcoR2
  3.    BamHI
  4.    HindIII
 Discuss Question
Answer: Option C. -> BamHI
Answer: (c).BamHI
Question 37. Which of the following temperature best suits for the growth and multiplication of transformed cells?
  1.    35°C
  2.    36°C
  3.    37°C
  4.    30°C
 Discuss Question
Answer: Option C. -> 37°C
Answer: (c).37°C
Question 38. In hybridization method, which of the following is pressed onto agar?
  1.    Silicon paper
  2.    Nitrocellulose paper
  3.    Filter paper
  4.    PVDF
 Discuss Question
Answer: Option B. -> Nitrocellulose paper
Answer: (b).Nitrocellulose paper
Question 39. Which of the following is a DNA element that instructs RNA polymerase where to bind on DNA?
  1.    Operator
  2.    Promoter
  3.    Enhancer
  4.    Hormone response element
 Discuss Question
Answer: Option B. -> Promoter
Answer: (b).Promoter
Question 40. Site directed mutagenesis facilitated research on __________
  1.    Carbohydrates
  2.    Proteins
  3.    Lipids
  4.    Fats
 Discuss Question
Answer: Option B. -> Proteins
Answer: (b).Proteins

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