Question

Sequences in mRNA, such as UGA, UAA, or UAG, that tell a ribosome when to stop making a new protein are known as A) anticodons. B) stop codons. C) transfer RNAs. D) genetic markers.

Answer 1

The answer is stop codons because stop codons cause the ribosome to let go of protein chain and end translation.

Answer 2

The answer is B) stop condons.

Stop codons, UGA, UAA, and UAG, are nucleotide triplets that signal to stop the translation of an mRNA sequence into proteins.