| chiasma |
A chiasma, related to the Greek word for "cross", is the technical term for the point where two chromatids are intertwined. The chiasmata are thought to be the points where two nonsister chromatids exchange genetic material during meiosis. The chiasmata become visible during the Diplonema Stage of meiosis, but the actual "crossing-over" of genetic material is though to occur during the previous Pachytene Stage. ...
출처: en.wikipedia.org/wiki/Chiasma
|
|---|---|
| chiasma |
(Gr. chiasma, two lines placed crosswise; pl. chiasmata) A visible point of junction between two non-sister chromatids of homologous chromosomes during the first meiotic prophase. aka cross-over. In the diplotene stage of prophase I of meiosis, the four chromatids of a bivalent are associated in pairs, but in such a way that one part of two chromatids is exchanged.
출처: www.fao.org/docrep/003/X3910E/X3910E06.htm
|
| chiasma |
[Greek, = cross; plural, chiasmata] The sites of exchange of DNA between homologous chromosomes during meiosis; visible during prophase of meiosis I.(More? Week 1 Notes)
출처: embryology.med.unsw.edu.au/Notes/Index/C.htm
|
| chiasmata |
Observable regions in which nonsister chromatids of homologous chromosomes cross-over each other.
출처: depts.washington.edu/~genetics/courses/genet372/w2...
|
| chiasma |
Gr. chiasma, two crossing lines. Optic chiasma is the site of crossing of optic nerve fibers to form the optic tract.
출처: www.vh.org/adult/provider/anatomy/MicroscopicAnato...
|