The agricultural research facility during a research accidentally changed the DNA sequence of a wheat plant from GCCATGTT to GCGTACTT and this mutation resulted in a stronger plant variety. What kind of mutation did the plant undergo?

it looks to me as if CATG was replaced by GTAC. Reversed? Surely not.

insertion

The mutation that occurred in the DNA sequence of the wheat plant is called a substitution mutation. In particular, it is a point mutation known as a nucleotide substitution or a single base pair substitution.

To understand this mutation, let's break down the DNA sequence and compare the original sequence (GCCATGTT) with the mutated sequence (GCGTACTT).

In a substitution mutation, a single nucleotide is replaced by another nucleotide. In this case, the substitution occurred at the fifth position of the DNA sequence. The original nucleotide at this position was an "A" (adenine), which was changed to a "T" (thymine) in the mutated sequence.

Therefore, the mutation resulted in the original sequence GCCATGTT being changed to GCGTACTT, with the substitution of adenine (A) to thymine (T) at the fifth position.

This mutation led to a change in the genetic information carried by the DNA, which subsequently affected the traits of the wheat plant and resulted in a stronger plant variety. Researchers in the agricultural research facility unintentionally altered the DNA sequence and inadvertently created a beneficial mutation.