The elongation of the polypeptide chain in protein synthesis is terminated by which of the following?

Give scientific reasons: The genetic code is universal.

How are mutations and genetic code related?

Suppose evolution on Earth occurred in such a way that instead of $20$ amino acids,there were $96$ amino acids. If $DNA$ consisted of $12$ different types of bases and $DNA$ synthesis occurred in the same manner,what would be the minimum number of bases required for each $DNA$ codon?

How many amino acids will be coded by the $mRNA$ sequence $5'-CCCUCAUAGUCAUAC-3'$ if an adenosine residue is inserted after the $12^{th}$ nucleotide?

Which codon does not code for a release factor?