Definition
noun
(embryology)A meroblastic cleavage wherein the cytoplasmic divisions are restricted to the animal pole, resulting in the formation of a disc of cells confined at the animal pole or on top of the yolk.
Supplement
This type of cleavage is characteristic of birds, fishes and reptiles in which their eggs contain a large amount of yolk that does not participate in cleavage.
See also: meroblastic cleavage, superficial cleavage
Definition noun (embryology)A meroblastic cleavage wherein the cytoplasmic divisions are restricted to the animal pole, resulting in the formation of a disc of cells confined at the animal pole or on top of the yolk. Supplement This type of cleavage is characteristic of birds, fishes and reptiles in which their eggs contain a large amount..
Different mental disorders are described here. Read this tutorial to get an overview of schizophrenia, affective mood di..
Obtaining air outside an aquatic environment required species to acquire suitable adaptations, and this was the case of ..
The circulatory system is key to the transport of vital biomolecules and nutrients throughout the body. Learn about the ..
For human species to obviate extinction, reproductive mature adults should be producing viable offspring in order to con..
This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..
Stems primarily provide plants structural support. This tutorial includes lectures on the external form of a woody twig ..
