Question

Which of the following codons code for threonine?

A. UCG
B. UGU
C. CGA
D. ACA

Answer 1

Answer is D.
A. Codes for serine
B. Codes for cysteine
C. Codes for arginine
D. Codes for threonine

Answer 2

D. ACA codon codes for threonine

Step-by-step explanation:

The genetic code has 64 triplets of nucleotides, each one is called codon. Each codon except three of them, encodes for one of the 20 amino acids used in the process of synthesis of proteins

ACA, ACG, ACC and ACU are the only codons of the genetic code able to code for threonine. The codon UCG codes for serine, the codon UGU codes for cysteine and the code CGA codes for arginine