Use the mutations interactive to determine which of the following are silent mut

Question

Use the mutations interactive to determine which of the following are silent mutations. The adenine of the start codon is position +1 a subsitution from G to T in the arginine codon of the antisense stand a transversion at position +12 in the antisense strand a transversion of A in the histidine codon of the antisense strand a substitution of a U nucleotide at position +9 in the antisense strand an A nucleotide is inserted at position +2 in the sense strand a single nucleotide deletion at position +12 in the antisense strand Incorrect. At least one of your choices is not a silent mutation. Consider that a silent mutation does not change the encoded amino acid because the protein product translated remains the same. Mutations that alter the polypeptide sequence are called missense. Mutations that introduce a premature stop codon are called nonsense mutations. Frameshift mutations are the insertion or deletion that shift the reading frame of the redundant non-overlapping triplet code.

Explanation / Answer

A substitution of u nucleotide at position +9 in antisense strand .

Note- the change of +9 position indicate change in the third baae of codon which usually allows the same amino acid to be coded unless few exceptions .

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