fertilization nucleus
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fertilization — fertilizational, adj. /ferr tl euh zay sheuhn/, n. 1. an act, process, or instance of fertilizing. 2. the state of being fertilized. 3. Biol. a. the union of male and female gametic nuclei. b. fecundation or impregnation of animals or plants. 4.… … Universalium
fertilization — The union of two gametes from opposite sexes to form a zygote. Typically, each gamete contains a haploid set of chromosomes. Hence the zygotic nucleus contains a diploid set of chromosomes. Several categories can be distinguished: 1. Self… … Glossary of Biotechnology
Nucleus — 1) In cell biology, the structure that houses the chromosomes. 2) In neuroanatomy, a group of nerve cells. * * * 1. In cytology, typically a rounded or oval mass of protoplasm within the cytoplasm of a plant or animal cell; it is surrounded by a… … Medical dictionary
nucleus of oocyte — the structure within the oocyte that becomes the female pronucleus after fertilization has occurred … Medical dictionary
fertilization tube — noun : a branch that projects from the antheridium and pierces the oogonium to provide for passage of the male nucleus in certain phycomycetous fungi … Useful english dictionary
segmentation nucleus — the fertilization nucleus after cleavage has begun. Called also cleavage n … Medical dictionary
segmentation nucleus — Nucleus formed by union of male and female pronuclei during fertilization … Dictionary of invertebrate zoology
conjugation nucleus — fertilization n … Medical dictionary
zygote nucleus — fertilization n … Medical dictionary
double fertilization — noun : fertilization that is characteristic of most seed plants and that involves a fusion between the egg nucleus and a sperm nucleus, which results in the production of the embryo, and a fusion between the second sperm nucleus and the two… … Useful english dictionary
