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Which one of the following is sequence on corresponding coding strand, if the sequence on mRNA formed is as follows
5'AUCGAUCGAUCGAUCGAUCGAUCG AUCG 3'?
5'UAGCUAGCUAGCUAGCUAGCUAGC UAGC 3'
3'UAGCUAGCUAGCUAGCUAGCUAGCUAGC 5'
5'ATCGATCGATCGATCGATCGATCGATCG 3'
3'ATCGATCGATCGATCGATCGATCGATCG 5'
Answers (1)
To find the corresponding coding strand, we replace each base according to the base pairing rules:
A (mRNA) pairs with U (coding DNA)
U (mRNA) pairs with A (coding DNA)
C (mRNA) pairs with G (coding DNA)
G (mRNA) pairs with C (coding DNA)
Applying these base pairing rules to the given mRNA sequence, we get:
5'AUCGAUCGAUCGAUCGAUCGAUCG AUCG 3'
3'TAGCTAGCTAGCTAGCTAGCTAGC TAGC 5'
Therefore, the correct corresponding coding strand sequence is 3'TAGCTAGCTAGCTAGCTAGCTAGC TAGC 5'.
Option 3 is the correct answer.
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