Gene Repression in Bacteria MCQs Quiz Online PDF Download

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MCQs on Gene Repression in BacteriaQuiz PDF Download

MCQ: Genes linked on E coli chromosome are

  1. lacZ
  2. lacY
  3. lacA
  4. all of above

D

MCQ: LacA encodes a detoxifying enzyme called

  1. β-galactoside transacetylase
  2. helicase
  3. polymerase
  4. gyrase

A

MCQ: Inhibition of gene expression by changing regulatory protein activity is termed as

  1. gene expression
  2. gene repression
  3. gene mutation
  4. gene localization

B

MCQ: In E.coli metabolism of lactose requires at least

  1. 2 proteins
  2. 3 proteins
  3. 4 proteins
  4. 5 proteins

A

MCQ: Lac operon expresses genes whose products catabolize

  1. maltose
  2. phosphate
  3. sucrose
  4. lactose

D