Biological aspects of the yolk of the hen's egg.
1964
R Bellairs
UI
MeSH Term
Description
Entries
D002642
Chick Embryo
The developmental entity of a fertilized chicken egg (ZYGOTE). The developmental process begins about 24 h before the egg is laid at the BLASTODISC, a small whitish spot on the surface of the EGG YOLK. After 21 days of incubation, the embryo is fully developed before hatching.
Embryo, Chick,Chick Embryos,Embryos, Chick
D004530
Egg Yolk
Cytoplasm stored in an egg that contains nutritional reserves for the developing embryo. It is rich in polysaccharides, lipids, and proteins.
Egg Yolks,Yolk, Egg,Yolks, Egg
D005260
Female
Females
D000818
Animals
Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.