What is the exchange of genes between homologous chromosomes called?

1 Answer
Henry W.
Oct 6, 2016

Crossing over

Explanation:

During synapsis in meiosis I (when the homologous chromosomes pair together during prophase I), is when crossing over occurs, and the chromatids of the homologous pairs "cross over" and swap genetic material.
http://ib.bioninja.com.au/standard-level/topic-3-genetics/33-meiosis/crossing-over.html

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