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MCQs

Total Questions : 71 | Page 5 of 8 pages
Question 41. Cre can be introduced by crossing it with a strain containing the gene or by infection with virus containing it.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 42. How much effect is there on the surrounding genes by the loxP sequence which is left after recombination has taken place?
  1.    Little effect
  2.    No effect
  3.    Huge effect
  4.    It depends on the nature of the surrounding gene
 Discuss Question
Answer: Option B. -> No effect
Answer: (b).No effect
Question 43. Excision of DNA flanked by loxP sequences is also known as _________
  1.    subtle excision
  2.    croxing
  3.    floxing
  4.    sequence specific excision
 Discuss Question
Answer: Option C. -> floxing
Answer: (c).floxing
Question 44. The ability to control the expression of cre allows controlling what?
  1.    recombination
  2.    replication
  3.    excision
  4.    packaging
 Discuss Question
Answer: Option C. -> excision
Answer: (c).excision
Question 45. RNA molecule with catalytic activity is termed as________
  1.    ribosomes
  2.    catalytic RNA
  3.    reactive RNA
  4.    ribozyme
 Discuss Question
Answer: Option D. -> ribozyme
Answer: (d).ribozyme
Question 46. Hepatitis delta virus capable of self cleavage.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 47. A permanent change of the nucleotide sequence of the genome is called
  1.    gene expression
  2.    bonding
  3.    mutation
  4.    replication
 Discuss Question
Answer: Option C. -> mutation
Answer: (c).mutation
Question 48. In humans naturally occurring oxidative DNA damages arise per cell per day at least
  1.    10,000 times
  2.    50,000 times
  3.    30,000 times
  4.    60,000 times
 Discuss Question
Answer: Option A. -> 10,000 times
Answer: (a).10,000 times
Question 49. Mutations in gene can
  1.    have no effect
  2.    alter the product of gene
  3.    prevent the gene from proper functioning
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
Answer: (d).all of above
Question 50. Single base substitutions are called as
  1.    mutations
  2.    point mutations
  3.    replication
  4.    recombination
 Discuss Question
Answer: Option B. -> point mutations
Answer: (b).point mutations

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