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NEET2004ZoologyMolecular Basis of InheritanceActual

During transcription, if the nucleotide sequence of the DNA strand that is being coded is ATACG then the nucleotide sequence in the m RNA would be:

Options

  1. ATATGC
  2. BTCTGG
  3. CUAUGC
  4. DUATGC.

Correct answer

C. UAUGC

Step-by-step solution

Template strand only serves as the template for transcription whereas coding strand contains the exact same sequence of nucleotides in the mRNA except thymine. Coding DNA strand 5'-ATACG-3' Template DNA strand 3'-TATGC-5' mRNA synthesised 5'-UAUGC-3' Caution The direction of the template strand is in 3' to 5', whereas the coding strand shows opposite directional polarity, i.e., 5^ to 3^ direction.

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