Genotypic Changes MCQ

Test your knowledge with important Genotypic Changes MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Genotypic Changes MCQs at Bissoy

• What is the mutation rate for E.coli per bacterium per cell division?
  ক

  5.8 x 10-6

  খ

  5.8 x 10-9

  গ

  5.8 x 10-8

  ঘ

  5.8 x 10-7
• Which of the following enzyme is used to join the DNA fragments together?
  ক

  polymerases

  খ

  exonuclease

  গ

  endonuclease

  ঘ

  ligase
• Photoreactivation can cause repair of DNA damaged by which of the following mutagens?
  ক

  UV rays

  খ

  X-rays

  গ

  Nitrous acid

  ঘ

  Base analogs
• Base analogs have the same hydrogen-bonding properties as the normal bases.
  ক

  True

  খ

  False
• Which of the following mutagen causes a break in the phosphodiester backbone of the nucleic acid?
  ক

  UV light

  খ

  X-rays

  গ

  Nitrous acid

  ঘ

  base analogs
• Which of the following mutations result in frameshift mutation?
  ক

  missense mutation

  খ

  transition

  গ

  transversion

  ঘ

  insertion
• In nonsense mutation, the new mRNA codon specifies the same amino acid as that from the original codon.
  ক

  True

  খ

  False
• Sickle cell anemia is which type of mutation?
  ক

  nonsense mutation

  খ

  missense mutation

  গ

  deletion mutation

  ঘ

  insertion mutation
• The replacement of a purine by a pyrimidine or vice versa is known as ____________
  ক

  tranversion

  খ

  transition

  গ

  base-pair substitution

  ঘ

  missense mutation
• Populations of cells descending from a single cell are known as ____________
  ক

  mutants

  খ

  clones

  গ

  wild-type cells

  ঘ

  parent cell
• Which is the functional unit of inheritance?
  ক

  DNA

  খ

  Chromosome

  গ

  Gene

  ঘ

  RNA
• Bacterial chromosome has the capacity to code for ____________ different proteins.
  ক

  900

  খ

  300

  গ

  1500

  ঘ

  3500