Test: AP Biology

1.

Crossing over is an event that contributes to the non-identical nature of gametes. Which of the following is true regarding crossing over?

I. It occurs during prophase I

II. It involves exchange of genetic material between sister chromatids

III. It involves exchange of genetic material between homologous chromosomes

II

I and II

I and III

I

1/69 questions

0%
Learning Tools by Varsity Tutors