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zygote
zygote Derived from the Greek meaning ‘yoked’, a zygote is the cell that results from fertilization. It is the union of a spermatozoon and an ovum — the mature germ cells, known also as the male and female gametes (from the Greek for husband and wife). Each of the two gametes is haploid, meaning that the nucleus has half the number of chromosomes of normal body cells. Their union results in the diploid zygote, with a full set of chromosomes, carrying the combination of genes that will determine all the bodily characteristics of the new individual. When, as a result of this union, matched genes (alleles) at particular sites on the newly paired chromosomes are different from each other, the zygote, and hence the resulting individual, is heterozygous with respect to those genes. It is homozygous if the pairs are identical. Since one of a dissimilar pair of genes can dominate the other, whereas identical pairs can act in unison, this is crucial to the suppression or emergence of the relevant inherited trait.
The zygote carries within its single cell continuing threads in the immemorial lifespan of the human race, as well as the mixed-and-matched microscopic material from which will stem the intricacies common to all human bodies, yet with the remarkable uniqueness of a particular person. Sheila Jennett, and Colin Blakemore |
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COLIN BLAKEMORE and SHELIA JENNETT. "zygote." The Oxford Companion to the Body. 2001. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. COLIN BLAKEMORE and SHELIA JENNETT. "zygote." The Oxford Companion to the Body. 2001. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O128-zygote.html COLIN BLAKEMORE and SHELIA JENNETT. "zygote." The Oxford Companion to the Body. 2001. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O128-zygote.html |
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zygote
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"zygote." World Encyclopedia. 2005. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. "zygote." World Encyclopedia. 2005. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O142-zygote.html "zygote." World Encyclopedia. 2005. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-zygote.html |
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zygote
zy·gote / ˈzīˌgōt/ • n. Biol. a diploid cell resulting from the fusion of two haploid gametes; a fertilized ovum. DERIVATIVES: zy·got·ic / zīˈgätik/ adj. |
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"zygote." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. "zygote." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O999-zygote.html "zygote." The Oxford Pocket Dictionary of Current English. 2009. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-zygote.html |
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zygote
zygote The fertilized ovum of an animal or plant formed from the fusion of male and female gametes, when, under normal circumstances, the diploid chromosome number is restored, in the stage before it undergoes division.
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MICHAEL ALLABY. "zygote." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "zygote." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O7-zygote.html MICHAEL ALLABY. "zygote." A Dictionary of Plant Sciences. 1998. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-zygote.html |
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zygote
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MICHAEL ALLABY. "zygote." A Dictionary of Zoology. 1999. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "zygote." A Dictionary of Zoology. 1999. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O8-zygote.html MICHAEL ALLABY. "zygote." A Dictionary of Zoology. 1999. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-zygote.html |
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zygote
zygote A fertilized female gamete: the product of the fusion of the nucleus of the ovum or ovule with the nucleus of the sperm or pollen grain. See fertilization.
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"zygote." A Dictionary of Biology. 2004. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. "zygote." A Dictionary of Biology. 2004. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O6-zygote.html "zygote." A Dictionary of Biology. 2004. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O6-zygote.html |
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zygote
zygote (zy-goht) n. the fertilized ovum before cleavage begins. z. intrafallopian transfer (ZIFT) see gamete intrafallopian transfer.
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"zygote." A Dictionary of Nursing. 2008. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. "zygote." A Dictionary of Nursing. 2008. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O62-zygote.html "zygote." A Dictionary of Nursing. 2008. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O62-zygote.html |
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zygote
zygote The fertilized ovum of a plant or animal.
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MICHAEL ALLABY. "zygote." A Dictionary of Ecology. 2004. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "zygote." A Dictionary of Ecology. 2004. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O14-zygote.html MICHAEL ALLABY. "zygote." A Dictionary of Ecology. 2004. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-zygote.html |
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zygote
zygote see reproduction . |
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"zygote." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. "zygote." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1E1-X-zygote.html "zygote." The Columbia Encyclopedia, 6th ed.. 2008. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-X-zygote.html |
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zygote
zygote
•afloat, bloat, boat, capote, coat, connote, cote, dote, emote, float, gloat, goat, groat, misquote, moat, mote, note, oat, outvote, promote, quote, rote, shoat, smote, stoat, Succoth, table d'hôte, Terre Haute, throat, tote, vote, wrote
•flatboat
•mailboat, sailboat, whaleboat
•speedboat • keelboat
•dreamboat, steamboat
•lifeboat • iceboat • longboat
•sauceboat • houseboat
•rowboat, showboat
•U-boat • tugboat • gunboat
•powerboat • motorboat • riverboat
•workboat • Haggadoth • anecdote
•scapegoat • redingote • nanny goat
•zygote • redcoat • tailcoat • raincoat
•waistcoat • greatcoat • petticoat
•topcoat • housecoat • undercoat
•entrecôte • surcoat • turncoat
•matelote • banknote • headnote
•endnote • keynote • woodnote
•footnote • compote • whitethroat
•shofroth • bluethroat • cut-throat
•creosote • mitzvoth • mezuzoth
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"zygote." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 10 Feb. 2012 <http://www.encyclopedia.com>. "zygote." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (February 10, 2012). http://www.encyclopedia.com/doc/1O233-zygote.html "zygote." Oxford Dictionary of Rhymes. 2007. Retrieved February 10, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-zygote.html |
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