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Biology · PYQ NEET UG 2023

हिन्दी

Which one of the following is the sequence on corresponding coding strand, if the sequence on mRNA formed is as follows 5' AUCGAUCGAUCGAUCGAUCG AUCG AUCG 3'?

  1. 5' UAGCUAGCUAGCUAGCUA GCUAGC UAGC 3'
  2. 5' ATCGATCGATCGATCGATCG ATCGATCG 3'
  3. 3' UAGCUAGCUAGCUAGCUA GCUAGCUAGC 5'
  4. 3' ATCGATCGATCGATCGATCG ATCGATCG 5'

Correct answer · Option 2

5' ATCGATCGATCGATCGATCG ATCGATCG 3'

Explanation

The coding strand has the same sequence as mRNA except Thymine (T) replaces Uracil (U). Thus, replacing U with T in the 5' to 3' mRNA sequence yields the 5' ATCGATCGATCGATCGATCG ATCGATCG 3' coding strand.
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