The genetic code specifies:

The number of codons effective in coding twenty amino acids is:

$A$ single base mutation in a gene may not 'always' result in loss or gain of function. Do you think the statement is correct? Defend your answer.

In $mRNA$,$AUG$ is the initiation codon and $UAA$,$UAG$,and $UGA$ are termination codons; therefore,a polypeptide cannot be synthesized beyond any of these triplets to the end of the $mRNA$. Which one of the following $mRNA$ sequences can be translated completely?

Which of the following features of genetic code allows bacteria to produce human insulin by recombinant $DNA$ technology?

How are mutations and genetic code related?