Question

Below is a codon - amino acid chart. The chart is read from the inside out. Please watch the video above if you need a reminder regarding how to read a codon chart. Proteins have a set start codon as well as multiple stop codons that signal when that protein is finished. Which of the codons in the chart is a stop codon?



(1 point)
Responses

UAG

AAA

GCA

GGU
Question 2
Imagine an mRNA strand with the sequence of AUG - AUC - UCG - UAA is about to undergo translation. What will the sequence of amino acids be? Use the codon chart above.

(1 point)
Responses

Met - Ile - Ser - Stop

Met - Stop - Ser - Phe

Phe - Gln - Arg - Stop

Tyr - Stop - Ser - Ile

Answer 1

**Question 1: Which of the codons in the chart is a stop codon?**

The correct response is: **UAG**

**Question 2: Imagine an mRNA strand with the sequence of AUG - AUC - UCG - UAA is about to undergo translation. What will the sequence of amino acids be?**

The correct response is: **Met - Ile - Ser - Stop**

Here's the breakdown of the mRNA sequence:
- AUG = Methionine (Met) - start codon
- AUC = Isoleucine (Ile)
- UCG = Serine (Ser)
- UAA = Stop codon

Therefore, the amino acid sequence is **Met - Ile - Ser - Stop**.