a dna segment has base order ACG TTA TCG , which copy exhibits a frameshift mutation through detection

A frameshift mutation occurs when a nucleotide is inserted or deleted from the DNA sequence, causing a shift in the reading frame. In this case, let's insert a "C" after the second "T" in the original sequence ACG TTA TCG to create ACG TTCA TCG.

This insertion causes a frameshift mutation because it shifts the reading frame of the subsequent codons. The resulting amino acid sequence will be different from the original sequence, leading to potential changes in the protein produced.