Difference between revisions of "Pronucleus"
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| − | A ''' | + | A '''pronucleus''' is the nucleus of a [[sperm]] or an [[egg]] prior to fertilization. Sperm and egg cells carry half the number of [[chromosome]]s of other nonreproductive cells. When the pronucleus of a sperm fuses with the pronucleus of an egg, their chromosomes combine and become part of a single nucleus in the resulting embryo, containing a full set of chromosomes. |
| − | == Sources == | + | ==Sources== |
http://www.genome.gov/glossary.cfm?key=pronucleus | http://www.genome.gov/glossary.cfm?key=pronucleus | ||
[[Category:Genetics]] | [[Category:Genetics]] | ||
Latest revision as of 15:57, June 2, 2008
A pronucleus is the nucleus of a sperm or an egg prior to fertilization. Sperm and egg cells carry half the number of chromosomes of other nonreproductive cells. When the pronucleus of a sperm fuses with the pronucleus of an egg, their chromosomes combine and become part of a single nucleus in the resulting embryo, containing a full set of chromosomes.