NEET 2018 Biology question

AGGTATCGCAT is a sequence from the coding strand of a gene. What will be the corresponding sequence of the transcribed mRNA?

(1)ACCUAUGCGAU
(2)UGGTUTCGCAT
(3)AGGUAUCGCAUCorrect
(4)UCCAUAGCGUA

Answer: (3)

Solution

mRNA is synthesised complementary to the template strand, so its sequence is the same as the coding strand with thymine (T) replaced by uracil (U). Coding strand 5'-AGGTATCGCAT-3' gives mRNA 5'-AGGUAUCGCAU-3', option (3). Option (4)

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Question ID VK-092355