If a point mutation occurred that changed the codon UCA to UAA, what would the effect be
on the amino acid?
a. Serine would change to Lysine
b. Tyrosine would change to Cysteine
c. Serine would change to Stop
d. There would be no change

Respuesta :

Answer: C) Serine would change to Stop

Explanation:

The given codon UCA codes for the amino acid serine in the genetic code. However, the mutation UCA to UAA is a stop codon (also known as an amber codon), which signals the end of protein synthesis. In this case, the mutation changes the amino acid-coding sequence to a stop signal, leading to premature termination of protein synthesis. This often results in a nonfunctional or truncated protein.