Look up: pronucleus

1. Pronucleus
   Either of the two haploid gamete nuclei just prior to their fusion in the fertilized ovum.
   Found on http://filebox.vt.edu/cals/cses/chagedor
   
   
2. pronucleus
   [n] - the nucleus of the ovum or sperm after fertilization but before they fuse to form the nucleus of the zygote
   Found on http://www.webdictionary.co.uk/definitio
   
   
3. Pronucleus
   Pronucleus: A cell nucleus with a haploid set of chromosomes (23 chromosomes in humans) resulting from meiosis (germ-cell division). The male pronucleus is the sperm nucleus after it has entered the ovum at fertilization but before fusion with the female pronucleus. Similarly, the female pronucleus ...
   Found on http://www.medterms.com/script/main/art.
   
   
4. pronucleus
   Haploid nucleus resulting from meiosis. In animals the female pronucleus is the nucleus of the ovum before fusion with the male pronucleus. The male pronucleus is the sperm nucleus after it has entered the ovum at fertilization but before fusion with the female pronucleus. In plants the pronuclei are the two male nuclei found in the pollen tube.
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
5. Pronucleus
   Pro·nu'cle·us noun ; plural Pronuclei (-ī). [ New Latin See Pro- , and Nucleus .] (Biol.) One of the two bodies or nuclei (called male and female pronuclei ) which unite to form the first segme...
   Found on http://www.encyclo.co.uk/webster/P/174
   
   
6. pronucleus
   <molecular biology> Haploid nucleus resulting from meiosis. ... In animals the female pronucleus is the nucleus of the ovum before fusion with the male pronucleus. The male pronucleus is the sperm nucleus after it has entered the ovum at fertilization but before fusion with the female pronucle...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
7. pronucleus
   noun the nucleus of the ovum or sperm after fertilization but before they fuse to form the nucleus of the zygote
   Found on http://wordnetweb.princeton.edu/perl/web
   
   
8. pronucleus
   (pro-noo´kle-әs) the haploid nucleus of a germ cell. female pronucleus the haploid nucleus of the fully mature oocyte, which loses its nuclear envelope and liberates its chromosomes to meet the synapsis with those from the male pronucleus. male pronucleus ...
   Found on http://www.encyclo.co.uk/local/21001
   
   
9. Pronucleus
   • (n.) One of the two bodies or nuclei (called male and female pronuclei) which unite to form the first segmentation nucleus of an impregnated ovum.
   Found on http://thinkexist.com/dictionary/meaning
   
   
10. pronucleus
    (from the article `fertilization`) After its entry into the egg cytoplasm, the spermatozoal nucleus, now called the male pronucleus, begins to swell, and its chromosomal material ... ...of gametic nuclei rather than independent gamete cells. A zygotic, or fusion, nucleus, not a true zygote, is produced and undergoes a series of ... ....
    Found on http://www.britannica.com/eb/a-z/p/120
    
    
11. Pronucleus
    The nucleus of a sperm or egg prior to fertilization.
    Found on http://www.ornl.gov/sci/techresources/Hu
    
    
12. pronucleus
    Type: Term Pronunciation: prō-nū′klē-ŭs, -klē-ī Definitions: 1. One of a pair of nuclei undergoing fusion in karyogamy. 2. In embryology, the nuclear material of the head of the sperm (male pronucleus) or of the oocyte (female pronucleus), after the oocyte has bee...
    Found on http://www.medilexicon.com/medicaldictio
    
    
13. Pronucleus
    The nucleus of a sperm or egg prior to fertilization.
    Found on http://www.ornl.gov/sci/techresources/Hu
    
    
14. Pronucleus
    A `pronucleus` (plural: `pronuclei`) is the nucleus of a sperm or an egg cell during the process of fertilization, after the sperm enters the ovum, but before they fuse. Sperm and egg cells are haploid, meaning they carry half the number of chromosomes. When the pronucleus of a sperm fuses with the ...
    Found on http://en.wikipedia.org/wiki/Pronucleus