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.
The statement is correct. Because of degeneracy of codons, mutations at third base of codon, usually does not result into any change in phenotype. This is called silent mutations.
Which one of the following pairs of codons is correctly matched with their function or the signal for the particular amino acid?
A triplet codon means
Genetic code determines
Assertion : $UAA,\,UAG$ and $UGA$ terminate protein synthesis.
Reason : They are not recognised by $tRNA$.
Based on your understanding of genetic code, explain the formation of any abnormal hemoglobin molecule. What are the known consequences of such a change ?