Question

ASAP IMAGE IS ATTACHED THIS IS NOT DIFFICULT

There are only 4 types of nucleotides in mRNA and 20 types of amino acids in proteins. This figure shows how 4 types of nucleotides can provide a unique code for each of the 20 types of amino acids.

6a. The mRNA code for each type of amino acid is a

sequence of _______ nucleotides, called a codon.
(2 / 3 / 4)

6b. In the figure, which mRNA codon codes for the amino acid Phe?

Answer 1

• The mRNA code for each type of amino acid is a sequence of three nucleotides, called a codon.
• mRNA codon that codes for the amino acid Phe es UUU.

Step-by-step explanation:

The messenger RNA (mRNA) has in its structure sequences of 4 nucleotides adenine, uracil, guanine and cytosine. The possible combinations of these nucleotides to group into triplets is 64 codons to form 20 amino acids, from which it can be concluded:

• An amino acid can be encoded by more than one codon.
• From these combinations the three STOP codons are obtained.

A mRNA codon is a sequence of three nucleotides that serves to encode an amino acid.

Phenylalanine (Phe), according to the image, is formed with the UUU codon.