Question

The chain of hemoglobin in man is 146 amino acids long. What would be the length in nucleotides of the mRNA molecule required to direct the synthesis of this polypeptide chain?​

Answer 1

Answer:

20 nm ( 1 = 10^-9 metre)

Explanation:

may be this is right answer

Answer 2

The length of nucleotides will be 441.

Given - Number of amino acids

Find - Length of mRNA

Solution - We are aware by the fact, that 1 amino acid is coded by three nucleotides. Also, we know, that stop codon is not translated into protein. Hence, mRNA will contain 3 nucleotides for each amino acid and 3 nucleotides that will act as stop codon.

Therefore, total number of nucleotides will be = 146×3 + 3

Performing multiplication to find the number of nucleotides

Total number of nucleotides = 438 + 3

Performing addition to find the number of nucleotides

Total number of nucleotides = 441

Hence, mRNA will have 441 nucleotides.

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