Question

What do you mean by chiasma??

Answer 1

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Chiasma: An intersection or crossing of two tracts in the form of the letter X.

In biology, chiasma is the point of contact, the physical link, between two (non-sister) chromatids belonging to homologous chromosomes

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Answer 2

chiasma means the crossing over of two parts or structures, such as the fibres of the optic nerves in the brain