Chapter No 13 :The Genetic Code and Transcription (120 MCQ`S)

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  1. Each word within mRNA consists of _________ribonucleotide letters
    1. 1
    2. 2
    3. 3
    4. 4
    5. Show Answer
      Answer: C
      Explanation:
      • N/A
  2. The triplet code on mRNA is called
    1. Anticodon
    2. Codon
    3. Semicodon
    4. Fullcodon
    5. Show Answer
      Answer: B
      Explanation:
      • N/A
  3. The triplet code on tRNA is called
    1. Anticodon
    2. Codon
    3. Semicodon
    4. Fullcodon
    5. Show Answer
      Answer: A
      Explanation:
      • N/A
  4. Genetic code is
    1. Degenerative
    2. Commaless
    3. Nonoverlapping
    4. All of these
    5. Show Answer
      Answer: D
      Explanation:
      • N/A
  5. The presence of mRNA was postulated by
    1. Morgan
    2. Francois Jacob
    3. Nirenberg
    4. Chargaff
    5. Show Answer
      Answer: B
      Explanation:
      • N/A
  6. The genetic code containing triplet base was proposed by
    1. Brenner
    2. Francois Jacob
    3. Nirenberg
    4. Chargaff
    5. Show Answer
      Answer: A
      Explanation:
      • N/A
  7. The genetic code was deciphered by
    1. Brenner
    2. Francois Jacob
    3. Nirenberg
    4. Chargaff
    5. Show Answer
      Answer: C
      Explanation:
      • N/A
  8. The enzyme_________synthesizes artificial RNA templates
    1. RNA polymerase
    2. RNA transcriptase
    3. DNA Polymerase
    4. Polynucleotide phosphorylase
    5. Show Answer
      Answer: D
      Explanation:
      • N/A
  9. In their initial experiments, Nirenberg synthesized________________ to decipher genetic code
    1. RNA heteropolymers
    2. RNA homopolymers
    3. RNA copolymers
    4. DNA heteropolymers
    5. Show Answer
      Answer: B
      Explanation:
      • N/A
  10. Har Gobind Khorana used______________to synthesize artificial RNA
    1. RNA heteropolymers
    2. RNA homopolymers
    3. RNA copolymers
    4. DNA heteropolymers
    5. Show Answer
      Answer: C
      Explanation:
      • N/A

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