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Topic: Egg cell

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Egg (biology)

Ovum

Egg

Embryo transfer

Cell (biology)

Gamete

Intracytoplasmic sperm injection

Sperm

Zygote

Female

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	Egg Cell - Picture - MSN Encarta
		In sexually reproducing organisms the egg cells, shown as large rounded structures in this photograph, carry half of the genetic information of the fertilized individual.
		Egg cells constitute the female gametes while the sperm cells constitute the male gametes.
		The fertilized egg contains both the genetic contribution of the male as well as that of the female and is termed diploid.
	encarta.msn.com /media_461516399/Egg_Cell.html (75 words)

	Medical Animation Library: Egg Cell Production
		All of the immature egg cells (oocytes) a woman will ever produce are stored in the ovaries by the time she is born.
		A follicle is composed of the developing egg cell and the support cells that surround and nourish it.
		The absence of a fertilized egg cell gradually causes a woman’s body to stop releasing the hormones that would otherwise prepare the uterus for the developing egg cell.
	pennhealth.com /health_info/animationplayer/egg_cell_production.html (608 words)

	Egg cell
		Egg cells are needed to create new life, as are sperm cells.
		An egg cell is very small, smaller than the dot at the end of this sentence.
		The moment the egg cell ruptures and is released is called ovulation.
	www.sexdictionary.info /eggcell.html (126 words)

	Botany online: ESSAY - Central cell fertilization - endosperm - in vitro
		IVF techniques with single higher plant sperm, egg and central cells presuppose their isolation, because the embryo sac is generally deeply embedded in the ovule, and the sperm cells are enclosed in pollen grains or tubes.
		As the isolated egg cells, central cells are protoplasts and therefore are spherical.
		The spindle-like shape of sperm cells is maintained by the cytoskeleton, thus the latter might contribute to the efficiency of gamete fusion in vitro.
	www.biologie.uni-hamburg.de /b-online/kranz/St-Louis.htm (4250 words)

	CELL REPRODUCTION
		Cell division is one phase of the cell cycle.
		_________________ is the division of the cytoplasm of the cell.
		In metaphase II, the chromosomes move to the midline of the dividing cell, facing opposite poles of the dividing cell.
	www.tipton-county.com /mhs/speight/notes/chapter8notes.htm (1450 words)

	The President's Council on Bioethics: Staff Working Paper 2
		During fertilization of eggs (or oocytes) by sperm, a pronucleus containing half the egg chromosomes is ejected from the cell.
		Though such union of egg and sperm requires laboratory assistance and takes place outside of the body, IVF reproduction is still sexual in the biological sense: the new human being arises from two biological parents through the union of egg and sperm.
		Activating the reconstructed egg with chemicals to stimulate the reconstructed egg to commence cell division in vitro.
	www.bioethics.gov /background/workpaper2.html (2998 words)

	Harvard Gazette: Harvard, MGH researchers track egg cell production to marrow
		The researchers believe that egg stem cells in the donor bone marrow established themselves in the sterile mice and began producing egg cells, also called oocytes.
		The research built on a paper published last year that showed that egg cells in mice ovaries were being replenished long after birth, challenging what Oktay called the "central dogma" of reproductive medicine - that females are born with a lifetime supply of eggs.
		The picture that is emerging, Tilly said, is one where stem cells in the bone marrow produce primordial egg cells that are released into the bloodstream in an immature form.
	www.news.harvard.edu /gazette/daily/2005/07/28-eggs.html (1085 words)

	NOVA \| scienceNOW \| The Cloning Process (non-Flash) \| PBS
		Because the egg cell is only 100 micrometers, or one-tenth of a millimeter, wide, we monitor this fine surgical extraction with a microscope (see previous image).
		In the future, such a donor cell might be a skin cell from a disease sufferer whom doctors hope to treat using the patient's own stem cells grown in culture; the procedure would be essentially the same as we're showing here.
		The inner cell mass is the part that in nature goes on to form the embryo after implantation in the womb, and thus it also contains the embryonic stem cells; the trophoblast layer goes on to form part of the placenta.
	www.pbs.org /wgbh/nova/sciencenow/3209/04-clon-nf.html (873 words)

	Egg - Wikipedia, the free encyclopedia
		Egg (biology), the ovum of animals together with protective layers and nutrients for the developing embryo
		Egg cell or Ovum, the female sex cell in animals and plants
		Egg (food) Edible eggs normally come from chickens, but they can come from birds, reptiles, and amphibians.
	en.wikipedia.org /wiki/Egg (247 words)

	How you were made:egg and sperm cells
		Egg cells are much bigger than sperm cells; you can just see them with the naked eye.
		One of the sperm cells penetrated the egg cell and the genetic material of your father and mother came together.
		The fertilised egg cell travelled in about a week to the womb and settled in the wall of the womb.
	www.nvsh.nl /facts (272 words)

	Bone marrow may be source of new egg-cell generation (Site not responding. Last check: 2007-10-11)
		The 2004 study had identified cells on the surface of mouse ovaries that resembled immature germ cells, which are the source of the oocytes that develop in embryonic animals.
		The presence of an embryonic germ cell marker in a blood-vessel-rich part of the ovary directed the investigators' attention to the bone marrow, where blood cells and several forms of stem cells are produced.
		To verify the presence of functioning germline stem cells in bone marrow, the investigators ran a series of experiments in two mouse models: genetically normal females who received extensive chemotherapy with drugs known to permanently destroy the ovaries and genetically sterile females that lack a gene essential for the development of mature oocytes.
	www.news-medical.net /?id=12073 (1188 words)

	Harvard, MGH researchers track egg cell production to marrow
		The researchers believe that egg stem cells in the donor bone marrow established themselves in the sterile mice and began producing egg cells.
		The research team treated mice with a chemotherapy drug known to destroy eggs but to be less damaging to long-term fertility, and found the ovaries lost 80 percent of their egg cells within 24 hours.
		To find the source of egg replenishment, they examined the ovary for a molecule found only on the surface of cells that develop into eggs in the embryo.
	www.researchmatters.harvard.edu /story.php?article_id=924 (332 words)

	ScienCentral Video News: Egg Regs
		Norsigian says the risks to egg donors, including the risks of the main drug used in ovarian hyperstimulation, have not been thoroughly studied.
		Egg donors are compensated for their time and effort, and clinics' ethical review committees set amounts that they consider fair, but not so large that they might be a donor's sole incentive.
		In fact, Lanza says Advanced Cell's ethics committee recommended that when the company recruits egg donors for its human ES cell research, it should set its compensation low enough that "we wouldn't be pulling from the pool" of egg donors who donate to couples trying to have a child.
	www.sciencentral.com /articles/view.php3?article_id=218391835 (1137 words)

	IMPLANTATION MADE SIMPLE
		The egg cell is released by one of the ovaries and than sucked into a fallopian tube.
		The cells on the surface of this mucus membrane contain specialized hair like protrusions which is constantly moving in such a way that there is a constant movement of fluid from the ovary towards the opening of tubes and from there toward the cavity in the womb.
		In plain terminology it is digging a hole in the endometrium to bury itself in the endometrium.
	www.femalehealthmadesimple.com /FileSixFinal.html (991 words)

	Oogenesis: A collaborative effort
		The task of oogenesis is to construct a large cell containing a large and complex dowry of resources for construction of the embryo before it can either make them on its own or obtain them from its environment.
		In the Graafian follicle a cluster of granulosa cells surround the accentrically-located oocyte.
		In somatic cells, the ratio of nuclear DNA:mitochondrial DNA is 100:1.
	www.ucalgary.ca /UofC/eduweb/virtualembryo/oogen.html (1108 words)

	Ovum - Wikipedia, the free encyclopedia
		The ovum is the largest cell in the human body, typically visible to the naked eye without the aid of a microscope or other magnification device.
		The egg cell's cytoplasm and mitochondria (and chloroplasts in plants) are the sole means of the egg being able to reproduce by mitosis and eventually form a blastocyst after fertilisation.
		There is an intermediate form, the ovoviviparous animals: the embryo develops within and is nourished by an egg as in the oviparous case, but then it hatches inside the mother's body shortly before birth, or just after the egg leaves the mother's body.
	en.wikipedia.org /wiki/Egg_cell (432 words)

	Cell Stem Cell Online
		Stem cell aging in the Drosophila ovary (Pan et al.
		A novel paradigm in tumor biology suggests that cancer growth is driven by stem-like cells within a tumor.
		cells grow in vitro as undifferentiated tumor spheroids, and they are both necessary and sufficient to initiate tumor growth in immunodeficient mice.
	www.cellstemcell.com (524 words)

	TRANSPARENT LEAF AREA1 Encodes a Secreted Proteolipid Required for Anther Maturation, Morphogenesis, and ...
		Cell morphogenesis appeared normal, but mesophyll cells were less green.
		From morphologically intact mesophyll cells in the yellow area of the leaf to collapsed or missing cells within the transparent region.
		Transcript amounts of transgenic egg cells relative to the mean value of wild-type egg cells are shown in the middle, and genomic amplifications from two transgenic egg cells (PCR without RT reaction; blue) are shown at the right.
	www.plantcell.org /cgi/content/full/17/3/730 (8571 words)

	A NEW LIFE BEGINS:FERTILIZATION MADE SIMPLE
		The egg cell changes and it is impossible for other sperms to also enters the egg cell.
		The egg cell is now fertilized and a now life begins.
		The movement of the fertilized egg cell through the fallopian tube is illustrated in this drawing.(green) Due to the function of the ciliary epithelium the fertilized egg is slowly moved through the fallopian tube to the cavity within the womb.
	www.femalehealthmadesimple.com /FileFiveFinal.html (476 words)

	Wymsey Weekend: A Guide to Mobile Cooking
		An egg cup, (make sure that the egg cup is made of an insulating material such as China, wood or glass - plastic will do.
		Take an egg from the fridge and place it in the egg cup in the centre of the table.
		Note: We cooked our egg during the evening using free local calls, if you were to cook an egg for lunch it would cost £3.00 - not cheap but you do have the convenience.
	www.wymsey.co.uk /wymchron/cooking.htm (414 words)

	Howstuffworks "Egg cell production"
		An egg cell or ovum must be at the right place at the right time for conception to take place.
		Fimbrea move the egg cell into the tube.
		The egg must be fertilized within 12 to 24 hours.
	health.howstuffworks.com /adam-200115.htm (105 words)

	Creation of Man - HARUN YAHYA
		The Role of the Egg cell in the Formation of a New Human Being
		The Weapon Factories of the Human Body: The B Cells
		The T cell's Differentiation According to the Order It Receives
	www.creationofman.net /sitemap.html (279 words)

	egg cell (Site not responding. Last check: 2007-10-11)
		Cell is modified so it can reproduce and doing a differentation..it depends on their gene.
		Egg cell is big because it contains nutrients for the new cell to divide.
		Not only that, stratification of substances in the oocyte (egg) sets up future divisions and what those daughter cells turn into down the road (differentiation).
	www.biology-online.org /biology-forum/about2102.html (124 words)

	30-Cell Plastic Egg Trays, 10 Count
		30-Egg, 5 Egg x 6 Egg, Recycled Fiber Egg Trays, 20 Count
		30-Egg, 5 Egg x 6 Egg, Recycled Fiber Egg Trays, 140 Count
		30-Egg, 5 Egg x 6 Egg, Recycled Fiber Egg Trays, 50 Count
	www.eggcartons.com /item313.htm (153 words)

	Tom Clancy's Splinter Cell Easter Egg : Meeting Grimsdottir
		Tom Clancy's Splinter Cell may have Slip-Ups on our companion site Slipups.com.
		When you first start, after looking at the red lights for calibration, double jump onto a ledge that is on your RIGHT and go into the room.
		Be the first to send us your picture of this Egg!
	www.eeggs.com /items/40991.html (215 words)

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