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 transversion at position + 12 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 a transversion of A in the histidine codon of the antisense strand a subsitution from G to T in the arginine codon of the antisense stand a substitution of a U nucleotide at position +9 in the antisense strand

Explanation / Answer

a substitution of a U nucleotide at position +9 in the antisense strand will result in the silent mutation because it would be the point mutation.

If there is the substitution of Uracil in the third letter of the third codon in the antisense strand then it will synthesize the complementary nucleotide in the Sense (coding) strand and also in the mRNA ie Adenine will be synthesized, thus this substitution will affect the amino acid, therefore, this mutation will be silent mutation.

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