Name the three non-sense codon?

The non-sense codons

Name three nonsense codons.

What are non-sense codons?

The non-sense codons are

The non-sense codons are

AUG is known as the initiation codon and UAA, UAG and UGA are known as termination codons. Then what are non-sense codons?

What is the ratio of non sense codons to sense codons respectively?