Question

..... chromosomes exchange their chromatid segments during meiosis.

Answer 1

In synapsis, the genes on the chromatids of the homologouschromosomes are precisely aligned with each other. An exchange of chromosome segments between non-sister homologous chromatids occurs and is called crossing over. The crossover events are the first source of genetic variation produced by meiosis

Answer 2

I hope it will help you......
homologous chromosomes exchange their chromatid segments during meiosis.