Q. 17.109 - An Introduction to General, Organic, and Biological Chemistry

Question

What are the possible codons for each of the following amino acids?
a. threonine
b. serine
c. cysteine

Step-by-Step Solution

Answer

Part(a) ACU, ACC, ACA, and ACG are possible codons for threonine.

Part(b) UCU, UCC, UCA, UCG, AGU, and AGC are possible codons for serine

Part(c) UGU and UGC are possible codons for cysteine.

Part(a) Step 1 : Given information

We need to find possible codons for threonine.

Part(a) Step 2 : Simplify

A series of codons, which are three-base sequences that dictate the order of amino acids in a protein, make up the genetic code.
therefore, ACU, ACC, ACA, and ACG are possible codons for threonine.

Part(b) Step 1 : Given information

We need to find possible codons for serine.

Part(b) Step 2 : Simplify

A series of codons, which are three-base sequences that dictate the order of amino acids in a protein, make up the genetic code.
therefore, UCU, UCC, UCA, UCG, AGU, and AGC are possible codons for serine

Part(c) Step 1 : Given information

We need to find possible codons for cysteine.

Part(c) Step 2 : Simplify

A series of codons, which are three-base sequences that dictate the order of amino acids in a protein, make up the genetic code.
therefore, UGU and UGC are possible codons for cysteine.