A mutation causes a sequence of DNA that has the nucleotides TTG to be changed to TCG. The resulting protein has a different sequence of amino acids. Which type of mutation is this? a. missense b. nonsense c. silent d. frameshift

The correct answer would be - a) missense.

Explanation:

A missense mutation is a type of a point mutation that is caused by the alteration or change in the a nucleotide of a triplet codon in a DNA sequence. This leads to a altered mRNA and incorporate different amino acid and ultimately different protein than usual.

This type of mutation can produce non functional protein by translation in most of the case and did not make any big change in the individual.

Thus, the correct answer would be - a) missense.