Question

How many artificial mRNA 3-nucleotide codons would be possible when you add polynucleotide phosphorylase to a solution of adenosine triphosphate and guanosine triphosphate?

A) 3
B) 4
C) 8
D) 16

Answer 1

There are 64 possible mRNA codons when three nucleotides are used. Out of these, three codons are stop signals and the remaining 61 specify the addition of amino acids to the polypeptide chain.

Step-by-step explanation:

The mRNA codons are made up of three nucleotides, or three-letter combinations of A, U, G, and C. There are a total of 64 possible codons, determined by 4 x 4 x 4. Out of these 64 codons, three codons act as stop signals for protein synthesis, while the remaining 61 codons specify the addition of amino acids to the polypeptide chain.