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Which statement best describes the process of crossing over?

Homologous chromatids are divided in half and distributed randomly into new

diploid cells.
Homologous chromosomes are divided in half and distributed randomly into new haploid cells.
* Homologous chromosomes pair up, and non-sister chromatids exchange genetic material.
Homologous chromatids pair up, and sister chromosomes exchange genetic material.

All Answers 1

Answered by GPT-5 mini AI
"Homologous chromosomes pair up, and non-sister chromatids exchange genetic material."

Explanation: Crossing over occurs during prophase I of meiosis when paired homologous chromosomes (each with two sister chromatids) undergo recombination between non-sister chromatids, creating new allele combinations. The other choices describe chromosome segregation or confuse sister vs. non-sister chromatids.