Question

ji wants to write an example of a frameshift mutation using the following sentence: the cat saw the rat. which sentence best shows a frameshift mutation?
○ thc ats awt her at.
○ cat the saw rat the.
○ eht tac was eht tar.
○ the the cat saw the rat.

Explanation:

A frameshift mutation occurs when nucleotides are inserted or deleted, shifting the reading - frame. In the sentence "THC ATS AWT HER AT", a letter has been inserted (the 'H' at the start), changing the grouping of the words and thus showing a frameshift - like effect in a language - based example. The other options do not represent a frameshift mutation. The second option is just a re - arrangement of words, the third is a reverse of the original, and the fourth has a repeated word but no frameshift.

Answer:

THC ATS AWT HER AT.