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egg in Biological Dictionary

Yolk

... An egg yolk is a part of an egg which serves as the food source for the developing embryo. The egg yolk is suspended in the ...

Vitelline membrane

... ) ... fertilization occur at the egg surface. The best known example, that of the sea ... Repository > MSUE ... poultry science > egg characteristics > egg membranes > vitelline membrane ... ...

Synergid

... one of the sterile cells on either side of the egg (synergids). These synergids begin to degenerate ... two specialized cells that lie adjacent to the egg cell in ... The term synergid comes from the ... The two synergid cells to either side of the egg cell are the most plausible ... GardenWeb ...

Shell membrane

... egg. ... between the shell membranes as the egg ages helps to separate shell from egg, ... ... important to have a basic understanding of the egg to successfully ... over the air cell, the inner ... Isthmus: The portion of the oviduct where the egg shell membranes are laid down. ... The ...

Polar body

... ... The first polar body is released by the egg when ovulation ... Polar Body Twinning ... twins are "half identical"-- the result of one egg ... In the theory of polar body twinning, a woman ovulates, and as her egg matures, ... The polar bodies contain ...

Ovulation

... ? Ovulation is the release of a mature egg ... Ovulation and the Cycle Phases ... The ... is the process that results in the release of an egg from the ovaries, ... After ovulation , the ... a type of cyst. ... After ovulation , the egg only lives for 24 hours or less without ...

Ovary

... size and shape ... monthly menstrual cycle, an egg is released from one ovary . ... Get ...... During ovulation, the ovaries release an egg from a fully mature follicle. ... Why some women ... syndrome, is a ... This process by which an egg is released from the ovary is called ....

Mictic egg

... Aspects of the topic mictic - egg are discussed in the following places at ... a peak in the early summer, a second type of egg is produced. If unfertilized, this egg , which is called mictic , results in males. .....

Lysozyme

... ( ) n. An enzyme occurring naturally in egg white, human tears, saliva, and other body ... : a model of enzyme action ... hen's egg white lysozyme . ... Lysozyme (muramidase) ... Structure and Function in Lysozyme ... Hen egg white lysozyme has been studied in great ...

In vitro

... vitro fertilisation (IVF) is a process by which egg cells are fertilised by sperm outside the ... in vitro fertilization obtained a single egg that was ... MySpace Music profile for ... an artificial conception method that allows the egg to be ... Health " Family Health " Health & ...

Germinal disc

... spot on the surface of the yellow yolk of an egg that has been laid. The nucleus of the egg is in the blastodisc. Germinal disc The ... on the surface of the yellow yolk of an egg that has germinal disk n. A flattened, ...

Gametogenesis

... of gametogenesis are the large, sedentary egg ... sperm cells produced during ... and the ... Gametogenesis . From Sperm and egg to Embryo. Genetic Regulation of Development ... ... - Image Diversity: sperm cells egg cells ... What is gametogenesis ? ... ...

Fertilized egg cell

... (Redirected from Fertilized egg ) Jump to: navigation, search ... Programmed ... ... Information about Fertilized egg cell in Free online English dictionary. ... The fertilized egg cell begins to divide and grow to become a ...

Fertilization

... Human fertilization is the union of a human egg and sperm, usually occurring in the ampulla of ... in which gametes—a males sperm and a females egg or ovum—fuse together, producing a single cell ... ... Within 24-hours after fertilization , the egg begins dividing rapidly into many cells. ... ...

Egg

... An egg is a round or oval body laid by the female of ... protect a developing embryo and ... egg (food), usually chicken eggs , but also those of other birds and turtles, as ... Mr egg , acid house musician. Eggs (novel), a novel ...

Ectopic

... Ectopic pregnancy occurs when the fertilized egg implants anywhere other than the uterine wall ...... - In about 2% of pregnancies, the fertilized egg attaches to ... The more you smoke, the higher ...... But in an ectopic pregnancy, the fertilized egg attaches (or implants) someplace ... Ectopic ...

Chalazae

... ... Chalazae (kuh-LAY-zee) - Ropey strands of egg white which anchor the yolk in ... These ... English dictionary and encyclopedia. ... 5 large egg yolks, chalazae (cordlike strands of egg white protein that are ... What is ...

Blastomere

... a type of cell produced by division of the egg after fertilization. ... In humans, blastomere ... cell resulting from cleavage of a fertilized egg ... Zoology information, history, articles ... blastomere separation, scientists fertilize an egg cell with a sperm cell in ... blastomere ...

Amictic egg

... Aspects of the topic amictic - egg are discussed in the following places at ... at different times of the ... Amictic , egg ,biological,biology dictionary,biology ... eggs . ... ... difference between resting- egg producing females and amictic females in the .....

Albumen

... from a negative. It used the albumen found in egg whites ... MySpace Music profile for ... printing-out paper is coated with salted egg white and sensitized Albumen Artist: The egg Rating: Release Date: 1996 Total Time: 71:09 ...

Acrosome

... must first fuse and then penetrate the female egg in order to fertilize it. Fusing to the egg usually causes little problem whereas ... in which gametes—a males sperm and a females egg or ovum—fuse together, ... The acrosome ...

Polar nuclei

... pollen tube discharges its contents into the female gametophyte, the egg nucleus is fertilized by one of the sperm, the other ... ... ... if the two nuclei have equal electron attracting powers. ... The egg cell and polar nuclei are contained within the embryo sac. ... ...

Ootid

... OOTQ. OotS. Ootsie Poodle ... well an embryo develops inside the egg and it should be large to support the developing embryo with ... well an embryo develops inside the egg and it should ... ootid Definition from dictionary ... ootid . ...

Oocytes

... to nourish the cell ... oocyte ( ) n. A cell from which an egg or ovum develops by meiosis; a female gametocyte. ... Oocytes are ... suitable human oocytes for research. ... A baby girl is born with egg cells ( oocytes ) in her ovaries. ... The many thousands of oocytes ...

Ontogeny

... the origin and the development of an organism from the fertilized egg to its mature form. Ontogeny is studied in developmental biology, ... also ... Ontogeny : development of an individual from the moment the egg is fertilized up till adulthood. ... Wing buds: beginning of the ...

Fallopian tubes

... Sometimes the fallopian tubes are blocked or damaged so that the egg cannot move ... The dye outlines the interior of the uterus and ... fallopian tubes become damaged, it can make it very hard for your egg to ... Fallopian Tubes & Surrounding Structures. Uterus & ...

Fallopian Tube

... the fallopian tube is not just some hollow tube that lets the egg fall ... Blocked fallopian tubes are responsible for 40% of ... paired tubular organs that connect the ... Fertilization of the egg by the sperm occurs in the fallopian tube . ... and sarcomas, ...

Blastoderm

... of cells formed at one pole of macrolecithal eggs such as the yolky egg of birds. The yolk prevents the division from taking place through ... that develops on the surface of the yolk in an avian or reptilian egg and gives rise to the germinal disk from Trilaminar embryo A ...

Blastocyst

... Background Information ... Services include IUI / IVF / ICSI / egg & Embryo Donation ... Two good quality Blastocyst are then selected, ... in vitro fertilization IVF, IUI, ICSI, blastocyst transfer, egg donation and surrogacy ... Animation showing the process of ...

Acrosome reaction

... fertilization, sperm must first fuse and then penetrate the female egg in order to fertilize it. Fusing to the egg usually causes little problem whereas penetrating through the egg's ...

Stem cell

... Obama Reverses Bush's Stem Cell Policies. March 9, 2009 ... STEM CELL RESEARCH ... Stem cell cultivation. 1) In vitro fertilized egg - made in an ... Similarities and differences between embryonic and adult stem cells ... The International Society for Stem Cell Research ...

Secondary oocyte

... An oocyte , ovocyte, or rarely ocyte, is a female gametocyte or germ cell involved in reproduction. In other words, it is an immature ovum, or egg cell. An oocyte is part of the ovary development. The germ cells produce a primordial germ cell (PGC) which becomes ... secondary ...

Primary oocyte

... An oocyte , ovocyte, or rarely ocyte, is a female gametocyte or germ cell involved in reproduction. In other words, it is an immature ovum, or egg cell. An oocyte is part of the ovary development. The germ cells produce a primordial germ cell (PGC) which becomes ... Oogonium ...

Pollen grain

... and one ... Each microspore develops by mitosis into a pollen grain . ... that the pollen grain grow a tube ... grain with the egg and polar nuclei is to get pollen ger ... A hard coat covering the pollen grain protects the sperm cells during the ... The pollen ...

Placental mammals

... The class Mammalia (the mammals ) is divided into two subclasses based on reproductive techniques: egg laying mammals ; and mammals which give live birth. The latter subclass is divided into two infraclasses: pouched mammals ; and the placental ...

Parthenogenesis

... In plants, parthenogenesis means development of an embryo from ... parthenogenesis n. A form of reproduction in which an unfertilized egg develops into a new individual, occurring commonly among insects and certain Natural parthenogenesis has been observed in many lower animals ...

Oviduct

... oviduct (ō'vĭ-dŭkt') Pronunciation Key ... oviduct ... 2.3 Oviduct . 2.4 Androgen, oestrogen and progesterone. 3 The formation of the hen's egg ... In the non-layer the oviduct is quite short and small in diameter. ... ... (also called uterine tube or oviduct ) conducts each egg, ...

Oogenesis

... Britannica online encyclopedia article on oogenesis (physiology), in the human female reproductive system, growth process in which the primary egg cell (or ovum) ... ...

Mitosis

... tour of the process of cell division. Be able to characterize, compare, and contrast the products of mitosis and meiosis ... When an egg is fertilized, it undergoes mitosis to form a large mass of cells ... This study guide introduces you to the basics of mitosis and the ...

Micromere

... (blastomeres) give rise, by alternating clockwise and counterclockwise divisions, to a cap of smaller cells, called micromeres, at one end of the egg and a ... Definition of micromere from Webster's New World College Dictionary. Meaning of micromere . ... micromere definition. ...
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