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 involves insertion or deletion of nucleotides (in language - letter) that shifts the reading frame. In "THC ATS AWT HER AT", letters are shifted compared to the original "THE CAT SAW THE RAT". Other options are not frameshift mutations. "CAT THE SAW RAT THE" is just a re - arrangement, "EHT TAC WAS EHT TAR" is a reverse, and "THE THE CAT SAW THE RAT" has an extra word but no frame - shift.

Answer:

THC ATS AWT HER AT.