Chapter No 10 :DNA Structure and Analysis (90 MCQ`S)

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  1. DNA serves as the genetic material in all living organisms on earth except some __________
    1. Bacteria
    2. Viruses
    3. Fungi
    4. Plants
    5. Show Answer
      Answer: B
      Explanation:
      • N/A
  2. In some_________RNA acts as genetic materia
    1. Bacteria
    2. Viruses
    3. Fungi
    4. Plants
    5. Show Answer
      Answer: B
      Explanation:
      • N/A
  3. DNA as heredity material was proved by experiments in_______
    1. 1644
    2. 1744
    3. 1844
    4. 1944
    5. Show Answer
      Answer: D
      Explanation:
      • N/A
  4. Watson and Crick model of DNA was proposed in
    1. 1953
    2. 1960
    3. 1965
    4. 1970
    5. Show Answer
      Answer: A
      Explanation:
      • N/A
  5. Which one is crucial characteristic/s of DNA
    1. Replication
    2. Storage of information
    3. Mutation
    4. All of these
    5. Show Answer
      Answer: D
      Explanation:
      • N/A
  6. Which one is not characteristic/s of DNA
    1. Replication
    2. Storage of information
    3. Mutation
    4. Single stranded
    5. Show Answer
      Answer: D
      Explanation:
      • N/A
  7. Transcription is synthesis of ____________RNA/RNAs from DNA
    1. rRNA
    2. mRNA
    3. tRNA
    4. All of these
    5. Show Answer
      Answer: D
      Explanation:
      • N/A
  8. Untill 1944, observations favoured_________as genetic material
    1. Protein
    2. Carbohydrate
    3. Lipid
    4. RNA
    5. Show Answer
      Answer: A
      Explanation:
      • N/A
  9. DNA was first studied in 1869 by a Swiss chemist______
    1. Watson
    2. Griffith
    3. Miescher
    4. McCarty
    5. Show Answer
      Answer: C
      Explanation:
      • N/A
  10. The acidic substance, isolated by Miescher from cell nuclei was named as
    1. DNA
    2. Nuclein
    3. RNA
    4. Protein
    5. Show Answer
      Answer: B
      Explanation:
      • N/A

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