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JIPMER2018ZoologyMolecular Basis of Inheritance

Which of the following mRNA can be transcripted as

Options

  1. AAUG.UGA.UUU
  2. BUAA.UAV.UGG
  3. CUAG.UGA.UUV
  4. DUGA.UUV.UGG

Correct answer

A. AUG.UGA.UUU

Step-by-step solution

Among the given options, only first one can be transcripted because it possesses an initiation codon-AUG which codes for methionine. Rest of the mRNA sequences start with termination codons, i.e. UAA (Ochre), UAG (Amber) and UGA (Opal). Therefore, these cannot be transcripted.

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