- yolk cleavage
- IVeterinaryகருப்பிளவுIIVeterinaryமஞ்சள் புரதப்பிளவு
English-Tamil dictionary. 2014.
yolk cleavage
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Cleavage (embryo) — In embryology, cleavage is the division of cells in the early embryo. The zygotes of many species undergo rapid cell cycles with no significant growth, producing a cluster of cells the same size as the original zygote. The different cells derived … Wikipedia
cleavage — /klee vij/, n. 1. the act of cleaving or splitting. 2. the state of being cleft. 3. the area between a woman s breasts, esp. when revealed by a low cut neckline. 4. a critical division in opinion, beliefs, interests, etc., as leading to… … Universalium
yolk cells — In those eggs in which the yolk is not distributed evenly (telolecithal eggs) the cells formed when cleavage reaches the yolk region can be termed yolk cells … Dictionary of molecular biology
cleavage — 1. Series of mitotic cell divisions occurring in the ovum immediately following its fertilization. SYN: segmentation (2). SEE ALSO: c. division. 2. Splitting of a complex molecule into two or more simpler molecules. SYN: scission (2). 3 … Medical dictionary
meroblastic cleavage — Cleavage of a heavily yolked egg in which only the egg cell divides, leaving the yolk undivided … Dictionary of invertebrate zoology
Egg cleavage — Segmentation Seg men*ta tion, n. The act or process of dividing into segments; specifically (Biol.), a self division into segments as a result of growth; cell cleavage; cell multiplication; endogenous cell formation. [1913 Webster] {Segmentation… … The Collaborative International Dictionary of English
Egg cleavage — Egg Egg ([e^]g), n. [OE., fr. Icel. egg; akin to AS. [ae]g (whence OE. ey), Sw. [ a]gg, Dan. [ae]g, G. & D. ei, and prob. to OSlav. aje, jaje, L. ovum, Gr. w,o n, Ir. ugh, Gael. ubh, and perh. to L. avis bird. Cf. {Oval}.] 1. (Popularly) The oval … The Collaborative International Dictionary of English
superficial cleavage — n meroblastic cleavage in which a layer of cells is produced about a central mass of yolk (as in many arthropod eggs) * * * a form of cell division occurring in centrolecithal zygotes, in which only the surface region participates … Medical dictionary
superficial cleavage — noun : meroblastic cleavage in which a layer of cells is produced about a central mass of yolk (as in many arthropod eggs) compare discoidal cleavage … Useful english dictionary
intralecithal — cleavage Cleavage where the nuclei undergo several divisions within the yolk without concurrent cytokinesis; common in arthropods … Dictionary of invertebrate zoology
animal development — Introduction the processes that lead eventually to the formation of a new animal starting from cells derived from one or more parent individuals. Development thus occurs following the process by which a new generation of organisms is produced by … Universalium
