Q.

An mRNA of 600 nucleotides long can code for a polypeptide chain of about how many amino acid residues?

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a

100

b

600

c

199

d

300

answer is B.

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Detailed Solution

An mRNA of 600 nucleotides long gives rise to a polypeptide chain of about how many amino acid residues.

Since a codon is a triplet.

600/3 = 200. Excluding the stop codon, a total of 199 amino acids can be seen in the resultant polypeptide chain.

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An mRNA of 600 nucleotides long can code for a polypeptide chain of about how many amino acid residues?