Which of the following crosses would result in the movement of P elements and subsequent hybrid dysgenesis?
A) P cytotype females x P cytotype males
B) M cytotype females x M cytotype males
C) P cytotype females x M cytotype males
D) M cytotype females x P cytotype males
E) Hybrid dysgenesis is not induced by cytotype.

Question

Quizplus · Accepted Answer

Hybrid dysgenesis in Drosophila is observed when P cytotype males are crossed with M cytotype females. This is because the P element transposons present in the P male can transpose in the germ line of the M female, whose genome lacks these elements and the necessary regulatory mechanisms to suppress their movement, leading to genetic instability and dysgenesis.

Which of the Following Crosses Would Result in the Movement