Question

If a tRNA molecule has an anticodon which reads CAG, what was the codon on the mRNA molecule?

AUG

GTC

UAG

GUC

Answer 1

Cytosine (C) always goes with Guanine (G)
Thymine (Uracil in RNA) always goes with Adenine

According you were told it is mRNA and tRNA, it is Uracil instead of Thymine, so answer B is incorrect. Which one do you think is correct then? Remember, that C is always with G, and A with U

Answer 2

D?

Answer 3

You are right:)

Answer 4

Yayy, :) Thank you!