from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The cell formed by the union of two gametes, especially a fertilized ovum before cleavage.
- n. The organism that develops from a zygote.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A fertilized egg cell.
from The Century Dictionary and Cyclopedia
- n. In biology, a fertilized ovum, or the equivalent, in plants and in unicellular organisms, of a fertilized egg; the product of the conjugation of gametes, or sexual cells.
- n. Same as zygospore.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (genetics) the diploid cell resulting from the union of a haploid spermatozoon and ovum (including the organism that develops from that cell)
The zygote is the first stage of development of an individual human being.
A fertilised zygote is no more a person than an acorn is an oak tree.
I certainly respect your points, anonymous ... but not everybody believes the way you do that a three-celled zygote is akin to an infant.
Do you know of anyone who would seriously claim a zygote is not alive?
September 13th, 2008 at 11: 01 pm fifth monarchy man: Would a Spartan warrior feel slighted if he were to be killed for the good of the community? fifth monarchy man: Do you know of anyone who would seriously claim a zygote is not alive?
After a sperm and egg meet, the resulting cell is known as a zygote.
(And by the way, stop using the “individual DNA” stuff to try to define why a zygote is “a separate human life.”
At fertilization, the egg and sperm cease to exist and an new entity called a zygote comes into being.
Furthermore, although the pope and his bishops may truly believe a zygote is a "preborn child," the truth is that a great number of active Catholics do not, and they vote, in great numbers, accordingly.
Modern genetics and biochemistry raise doubt about calling a zygote or blastocyst a human being.