Chapter No 9 :Biotechnology and DNA Technology (50 MCQ`S)

  1. Which of the following technique human use to get desired breed?
    1. Natural selection
    2. Artificial selection
    3. Genetic engineering
    4. Biotechnology
    5. Show Answer
      Answer: B
      Explanation:
      • N/A
  2. What is the role of restrictions enzyme in cell?
    1. It cut DNA into fragments
    2. It join DNA into long chain
    3. It start DNA replication
    4. It start DNA transcription
    5. Show Answer
      Answer: A
      Explanation:
      • N/A
  3. How Restrictions enzyme bacterial cell from phage infection?
    1. It hydrolyze the viral DNA
    2. It hydrolyze the bacterial DNA
    3. It prevent entry of virus in bacterial cell
    4. It help to make a protective layer around cell
    5. Show Answer
      Answer: A
      Explanation:
      • N/A
  4. How bacterial DNA protect from digestion of restriction enzyme?
    1. Bacterial DNA have methylates on ends
    2. Bactetial DNA have carboxyle ends
    3. Because bacterial DNA is linear
    4. Because bacterial DNA is circular
    5. Show Answer
      Answer: A
      Explanation:
      • N/A
  5. Which of the following ends are good for recombinant technology?
    1. Blunt ends
    2. Sticky enda
    3. Linear ends
    4. All of these
    5. Show Answer
      Answer: B
      Explanation:
      • N/A
  6. Which of the following viruses are used as vector?
    1. Retroviruses
    2. Adenovirus
    3. Herpesviruses
    4. All of these
    5. Show Answer
      Answer: D
      Explanation:
      • N/A
  7. What characteristics a vector must have?
    1. Highly replicative
    2. Easily inserted into cell
    3. Remain preserve during various procedure
    4. All o these
    5. Show Answer
      Answer: D
      Explanation:
      • N/A
  8. Which one of the following is best vector?
    1. Bacteria
    2. Mosquito
    3. Plasmid
    4. Virus
    5. Show Answer
      Answer: C
      Explanation:
      • N/A
  9. What does role played by shuttle vector?
    1. They move clone DNA
    2. They move plasmid
    3. They absorb new DNA
    4. All of these
    5. Show Answer
      Answer: A
      Explanation:
      • N/A
  10. If you are trying to insert herbicide resistance gene into plant than which of the following is best selection?
    1. Plasmit
    2. Shuttle vector
    3. Virus
    4. Bacteriad
    5. Show Answer
      Answer: B
      Explanation:
      • N/A

COMING SOON

  1. FINE ARTS
  2. HOME ECONOMICS
  3. JOURNALISM
  4. PHILOSOPHY
  5. SARAIKI(سرائیکی)
  6. SOCIAL WORK