The sequence of nitrogen bases in a portion of the template segment of DNA was AAT GCT TAG GCA. What will be the sequence of nitrogen bases in the corresponding region of the transcripted mRNA?
A
UUT CGT TUC CGU
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B
AAT GCT TAG GCA
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C
UUA CGA AUC CGU
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D
TTA CGA ATC CGT
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Solution
The correct option is C UUA CGA AUC CGU As per Chargaff’s rule purine Adenine pairs with Uracil in RNA and Thymine in DNA. Guanine pairs with Cytosine. So the corresponding sequence for AAT GCT TAG GCA in mRNA will be UUA CGA AUC CGU.