If two transposons,in the same chromosome and in opposite orientation,pair and cross over,the segment between them will be
A) inverted.
B) deleted.
C) inactive.
D) unchanged.
E) None of these

Question

Quizplus · Accepted Answer

When two transposons in opposite orientations pair and cross over, the segment between them undergoes an inversion. This is because the two transposons promote the excision and reinsertion of the DNA segment between them in reverse orientation, leading to an inversion of the intervening DNA. This mechanism is known as transposon-mediated homologous recombination and is a common way for transposons to generate genetic variation. The other options, such as deletion, inactivity or no change, do not accurately reflect the outcome of this type of recombination event.

If Two Transposons,in the Same Chromosome and in Opposite Orientation,pair