Definition of Chiasma. Meaning of Chiasma. Synonyms of Chiasma

Here you will find one or more explanations in English for the word Chiasma. Also in the bottom left of the page several parts of wikipedia pages related to the word Chiasma and, of course, Chiasma synonyms and on the right images related to the word Chiasma.

Definition of Chiasma

Chiasma
Chiasm Chi"asm, Chiasma Chi*as"ma, n. [NL. chiasma, fr. Gr. ? two lines placed crosswise, fr. ? to mark with a [chi].] (Anat.) A commissure; especially, the optic commissure, or crucial union of the optic nerves. -- Chi*as"mal, a..

Meaning of Chiasma from wikipedia

- Look up chiasm, chiasma, chiasmata, or chiasms in Wiktionary, the free dictionary. Chiasm may refer to: Chiasm (musical project), an electronic music...
- In genetics, a chiasma (pl.: chiasmata) is the point of contact, the physical link, between two (non-sister) chromatids belonging to homologous chromosomes...
- In neuroanatomy, the optic chiasm, or optic chiasma ( /ɒptɪk kaɪæzəm/; from Gr**** χίασμα 'crossing', from Ancient Gr**** χιάζω 'to mark with an X'), is...
- described the phenomenon in 1909 and had called it "chiasmatypie". The term chiasma is linked, if not identical, to chromosomal crossover. Morgan immediately...
- decussatio is used, e.g. decussatio pyramidum. Similarly, the anatomical term chiasma is named after the Gr**** uppercase 'Χ' (chi). Whereas a decussation refers...
- photoreceptor cells travel in the following way: Retina→Optic nerve→Optic chiasma (here the nasal visual field of both eyes cross over to the opposite side)→Optic...
- (based on the Latin notation for ten, 'deca,' as an uppercase 'X') and chiasmas (after the Gr**** uppercase letter 'Χ,' chi). A decussation denotes a crossing...
- the two original haploid nuclear types as well as diploid fusion nuclei. Chiasma formation is common in meiosis, where two homologous chromosomes break...
- cell axons and glial cells; it extends from the optic disc to the optic chiasma and continues as the optic tract to the lateral geniculate nucleus, pretectal...
- exchange produces a chiasma, a region that is shaped like an X, where the two chromosomes are physically joined. At least one chiasma per chromosome often...