How many bases in mRNA (only sense codon) would be present for a polypeptide chain of 80 amino acids?
A
243
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B
246
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C
240
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D
237
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Solution
The correct option is A 240 As we know that a set of three bases of mRNA, called as triplet codon, specify one amino acid. Thus, for a polypeptide of 80 amino acids, the corresponding mRNA will have 80 X 3 = 240 bases.