Question

is a source of genetic variation that involves the swapping of sections of chromosomes during meiosis.

Answer 1

I believe the answer would be Crossing Over.
Hope this helps.

Answer 2

Crossing over.

Step-by-step explanation:

Crossing over is the process of exchange of genetic material between two non-sister chromatids of a homologous chromosome pair. It occurs during pachytene of prophase I of meiosis I. Crossing over creates new gene combinations that were otherwise not present in the parent cells. In this way, genetic variations are created by crossing over.