In order for P element transfer to happen in Drosophila which of the following situations must occur?

Question

Quizplus · Accepted Answer

P elements are only present in the genome of Drosophila melanogaster and not in other closely related Drosophila species. Therefore, in order for P element transfer to occur, a strain with P elements (P) must mate with a strain lacking P elements (M). The transfer mechanism involves transposition of P elements from the P strain to the M strain's genome via a cut-and-paste mechanism mediated by transposase. Therefore, a P male crossed with an M female is the only scenario in which P element transfer can occur.

In Order for P Element Transfer to Happen in Drosophila