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STD 12 - 5. molecular basis of inheritance — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 5. molecular basis of inheritance1 Mark
MCQ
Which one of the following is the sequence on corresponding coding strand, if the sequence on mRNA formed is as follows $5'AUCGAUCGAUCGAUCGAUCGAUCG\,AUCG 3'$?
  • A
    $3' ATCGATCGATCGATCGATCGATCGATCG 5'$
  • B
    $5' UAGCUAGCUAGCUAGCUAGCUAGCUAGC 3'$
  • C
    $3' UAGCUAGCUAGCUAGCUAGCUAGCUAGC 5'$
  • ✓
    $5'ATCGATCGATCGATCGATCGATCGATCG 3 '$
✓

Answer

Correct option: D.
$5'ATCGATCGATCGATCGATCGATCGATCG 3 '$
d
The sequence of coding strand is same as RNA except thymine at the place of uracil.

Template strand $\rightarrow$ 3'-TAGCTAGCTAGCTAGCTAGCTAGCTAGC-5'

Coding strand $\rightarrow$ 5'-ATCGATCGATCG ATCGATCGATCGATCG-3'

$\downarrow$ Transcription

mRNA $\rightarrow$ 5' AUCGAUCGAUCGAUCGAUCGAUCG AUCG $3 '$

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