Home Biology Molecular Basis of Inheritance Previous Year Questions Which one of the following is the sequence o…
Biology Molecular Basis of Inheritance Previous Year Questions Single Correct MCQ
Published on: August 21, 2026

Which one of the following is the sequence on corresponding coding strand, if the sequence on mRNA formed is as follow

5'AUCGAUCGAUCGAUCGAUCGAUCG AUCG 3?

A
3' ATCGATCGATCGTCGATCG ATCGATCG 5,
B
5 ' UAGCUAGCUAGCUAGCUA GCUAGC UAGC 3'
C
3' UAGCUAGCUAGCUAGCUA GCUAGCUAGC 5'
D
5 ' ATCGATCGATCGATCGATCG ATCGATCG 3,

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Verified by Experts
The correct answer is:
C

The two strands have opposite polarity and the DNA-dependent RNA polymerase also catalysed the polymerisation in only one direction, i.e., , The strand that has the polarity acts a template, and is also referred to as template strand. The other stand which has polarity and the sequence same as RNA (except thymine at the place of uracil), is displaced during transcription. This strand is referred to as coding strand.

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