Question

When we see chiasmata under a microscope, that lets us know which of the following has occurred?

A) asexual reproduction
B) meiosis II
C) anaphase II
D) prophase I
E) separation of homologs

Answer 1

When we see chiasmata under a microscope, that lets us know that prophase I has occurred. During this phase of meiosis, the nuclear envelope breaks up and disappears, and so does nucleolus. The chromosomes become visible at this point.