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- n. Plural form of chiasma.
Sorry, no etymologies found.
After this, the chromosomes cross over at certain points called chiasmata, where they exchange genetic material and create different combinations.
Various forms of a gene at a given locus are called chiasmata alleles autosomes loci chromatids
It revealed why crossing-over should be suppressed between the centromere and the nucleolus organizer in organisms in which chiasmata terminalize, from the initial loaction of a crossover to the end of the arm of the chromosome.
Late prophase I. nuclear envelope dissolves nucleolus completely disappears crossing over of chromatids within bivalents may occur to form a chiasma (pl. chiasmata) spindle is formed at end