Page 53 - Demo 1

pieces of their genec material with each other. One of the most notable
examples of recombinaon occurs during meiosis I (specifically, during
prophase I), when homologues line up in pairs and exchange segments of DNA
during crossing over. Crossing-over allows alleles on DNA molecules to change
posions from one homologous chromosome segment to another, resulng in
gametes with new combinaons of genes. This process helps maximize the
genec diversity of any offspring that results from the eventual union of two
gametes during sexual reproducon.

Figure 30. Comparison of Mitosis and Meiosis (2n = 6)
Source:
https://online.science.psu.edu/sites/default/files/biol110/Tutorial%208%20Figure%205%20Crossing%20over.jpg

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