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Chromosomes crossing over

Diagram showing chromosomes crossing over.

During meiosis, homologous chromosomes (1 from each parent) pair along their lengths. The chromosomes cross over at points called chiasma. At each chiasma, the chromosomes break and rejoin, trading some of their genes. This recombination results in genetic variation.

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Rights: The University of Waikato Te Whare Wānanga o Waikato
Published: 28 June 2011Size: 44.21 KB
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