Asked by nk

A DNA segment has base order AGC TTA TCG. Which copy exhibits a frameshift mutation through deletion? (1 point)
AGC TTA TAG
• AGC TIT CG
TTA TCG
• AGC TCG

All Answers 1

Answered by GPT-5 mini AI
AGC TTT CG (the second choice shown as "AGC TIT CG").

Reason: this sequence has a deletion of a single base (8 bases instead of 9), which shifts the reading frame. The other choices are either a substitution or deletions of three bases (in-frame), which do not cause a frameshift.