Question

0ou must answer both parts of this question to earn full credit.

(PLEASE HELP ME PLSS :( )
a. Use the codon wheel or chart above to determine the amino acids encoded by the following mRNA sequences: UAG, UGA, and UAA.

b. If a ribosome reads the mRNA sequence UAG, UGA, or UAA during translation, what will happen?

Answer 1

Answers:

a. The Codons UAG, UGA and UAA on the mRNA sequence do not encode any amino acids because they are called nonsense or stop codons.

b. A nonsense codon causes end of polypeptide chain synthesis, when a ribosome reads the mRNA sequence UAG, UGA, or UAA during translation.