chiasma
Kelime Anlamı :
1. Çaprazlama; üstüste gelme.
2. çapraz (yunanca X harfi şeklinde) örn: chiasma opticum.
Tanımlar :
1.
anatomy A crossing or intersection of two tracts, as of nerves or ligaments.
2. genetics the point of contact between paired chromatids during meiosis, resulting in a cross-shaped configuration and representing the cytological manifestation of crossing over.
2. genetics the point of contact between paired chromatids during meiosis, resulting in a cross-shaped configuration and representing the cytological manifestation of crossing over.
from The American Heritage® Dictionary of the English Language, 4th Edition