Question

Insulin is a protein containing 51 amino acids these include 17 of the 20 different amino acids commonly occurring in proteins.
what is the minimum number of different kinds of transfer RNA molecules involved in the synthesis of insulin ?
a) 3
b) 17
c) 20
d) 51 ​

Answer 1

Explanation:

In translation, messenger RNA (mRNA) is decoded in the ribosome decoding center to produce a specific amino acid chain, or polypeptide. The polypeptide later folds into an active protein and performs its functions in the cell.

(c) 17, (d) 45, (e) 75? (c) 1, because 4^1 = 4 codons, which is more than enough to specify 2 different amino acids.

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Answer 2

D Since there are 17 different amino acids that constitute insulin, the minimum number of dif ferent tRNA molecules is 17 x 3 = 51.