zygote

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zygote

 [zi´gōt]
the cell resulting from union of a male and a female gamete; the fertilized ovum (see also reproduction). More precisely, the cell after synapsis at the completion of fertilization until first cleavage. adj., adj zygot´ic.
Development of the zygote. A, A sperm enters the ovum. B, The 23 chromosomes from the sperm mingle with the 23 chromosomes from the ovum, restoring the diploid number to 46. C, The fertilized ovum, now called a zygote, is ready for the first mitotic cell division. From McKinney et al., 2000.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

zy·gote

(zī'gōt),
1. The diploid cell resulting from union of a sperm and a secondary oocyte. Compare: conceptus.
2. The early embryo that develops from a fertilized oocyte.
[G. zygōtos, yoked]
Farlex Partner Medical Dictionary © Farlex 2012

zygote

(zī′gōt′)
n.
1. The cell formed by the union of two gametes, especially a fertilized ovum before cleavage.
2. The organism that develops from a zygote.

zy·got′ic (-gŏt′ĭk) adj.
zy·got′i·cal·ly adv.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

zy·gote

(zī'gōt)
1. The diploid cell resulting from union of a sperm and an oocyte.
Compare: conceptus
2. The early embryo that develops from a fertilized oocyte.
[G. zygōtos, yoked]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

zygote

An egg (ovum) that has been fertilized but has not yet undergone the first cleavage division. A zygote contains a complete (DIPLOID) set of chromosomes, half from ovum and half from the fertilizing sperm, and thus all the genetic code for a new individual.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

zygote

the DIPLOID (1) cell produced by the fusion of the nuclei of male and female gamete nuclei at FERTILIZATION.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Zygote

The result of the sperm successfully fertilizing the ovum. The zygote is a single cell that contains the genetic material of both the mother and the father.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

zy·gote

(zī'gōt)
1. Diploid cell resulting from union of a sperm and a secondary oocyte.
2. Early embryo that develops from a fertilized oocyte.
[G. zygōtos, yoked]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
1-4% of human zygotes were found to be 3PN, but there is less information about the chromosomal composition derived from these zygotes because 3PN embryos are generally discarded in routine IVF as they are thought to be genetically abnormal.
For cytoskeletal observation, the zygotes were processed according to the following procedures.
Du et al., "Efficient generation of gene-modified pigs harboring precise orthologous human mutation via CRISPR/Cas9-induced homology-directed repair in zygotes," Human Mutation, vol.
To characterize the effects of oxidative stress on zygotes, our previous studies used different doses of hydrogen peroxide ([H.sub.2][O.sub.2]) to treat mouse zygotes at 7 h postinsemination (hpi) to simulate the clinical phenomenon of oxidative damage in zygotes.
In response to Steven Sylwester's April 11 letter, "A zygote is a human being," I think we can all agree that a woman seeking an abortion does not want a birth.
We would suggest replacing this with 'the manipulation of cells, gametes, zygotes or embryos or genetic material derived therefrom in order to achieve reproduction of a human being and includes but is not limited to nuclear transfer and embryo splitting.
The unfertilized eggs, the ones fertilized without cleavage, the zygotes in cleavages I-IV and the anomalous (A) were evaluated in each experiment and typical examples of these categories can be found in Fig.
In vitro culture of zygotes was carried out in SOFaaBSA and used as control.
As mentioned above, personhood proponents seek to attach legal personhood and, in particular, the associated right not to have life destroyed to single-celled zygotes. Presumably, this would mean that any form of contraception (emergency or otherwise) that can prevent pregnancy after the creation of a single-celled zygote would be potentially problematic.
Those pieces of legislation argue that undeveloped zygotes are people too and should therefore be given full legal rights, thus making abortion, and even certain forms of birth control, illegal, the report said.