- zygote nucleus
- fertilization n.
Medical dictionary. 2011.
zygote nucleus
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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
zygote — n. [Gr. zygosis, a joining] A fertilized egg or egg nucleus … Dictionary of invertebrate zoology
cleavage nucleus — noun : the zygote nucleus formed by the fusion of male and female pronuclei * * * cleavage nucleus, Embryology. the nucleus which results from the union of the male and female pronuclei, before the division of the egg into two blastomeres … Useful english dictionary
cleavage nucleus — 1. The nucleus of a fertilized egg cell or zygote. 2. The nucleus of egg cells that develop parthenogenetically … Dictionary of invertebrate zoology
fusion nucleus — noun 1. a. : primary endosperm nucleus b. : the triploid nucleus resulting from double fertilization that produces the endosperm nuclei in seed plants 2. a. : synkaryon … Useful english dictionary
fertilization nucleus — the nucleus produced by fusion of the male and female pronuclei in the fertilized oocyte; called also conjugation n., zygote n., and synkaryon … Medical dictionary
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
Mitochondrion — For the metal band, see Mitochondrion (band). Two mitochondria from mammalian lung tissue displaying their matrix and membranes as shown by electron microscopy … Wikipedia
Micronucleus — A the micronucleus is the smaller nucleus in ciliate protozoans, such as the paramecium. In fission it divides by mitosis, and in conjugation furnishes the pairing of gamete nuclei, by whose reciprocal fusion a zygote nucleus is formed, which… … Wikipedia
pronucleus — n. [L. pro, before; nucleus, kernal] The spermatozoa and ova nucleus after maturation, prepared for fusion to form a zygote nucleus … Dictionary of invertebrate zoology
