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Fertilization in Biological Dictionary

Vitelline membrane

... at Britannica. Assorted References affected by fertilization ( in fertilization (reproduction): Formation of the fertilization membrane ) ... ...

Oviducts

... have an ... It is within the oviducts that fertilization (the union of the sperm cell and ovum) ... (be spayed) ... It is within the oviducts that fertilization (the union of the sperm cell and ovum) ... a good idea ... It is within the oviducts that fertilization (the union of the sperm cell and ovum) ...

In vitro

... results Abnormal results Resources In Vitro fertilization The massive adoption of low-cost in vitro ... productive. ... Explains the in vitro fertilization pre-embryo transfer (IVF-ET) fertility ... ... The first live birth from in vitro fertilization obtained a single egg that was ... MySpace ...

Fertilization

... Scientific article describing fertilization , the union of an ovum and sperm usually occurring in the development of an embryo. Human fertilization is the union of a human egg and sperm, ... Scientists discovered the dynamics of human fertilization ... ...

Blastocyst

... ... In a typical non- blastocyst in vitro fertilization (IVF) cycle, a woman's eggs ... Illustrations ... is an embryo created during in vitro fertilization that has been ... Blastocyst tansfer ... Reproductive Enhancement specializes in vitro fertilization IVF, IUI, ICSI, blastocyst transfer, egg ...

Polar nuclei

... two polar nuclei in a central cell, and a three-celled ... Double fertilization The parts of a flower Double fertilization Double ... The remaining two nuclei , called polar nuclei , share the ...

Parthenogenesis

... found in females where growth and development of embryos occurs without fertilization by a male. In plants, parthenogenesis means development of an embryo ... in a Root-Knot Nematode Results in ... Jacques Loeb\'s research on fertilization was part of a larger agenda that he ... Artificial parthenogenesis ...

Gamete

... A gamete is a cell that fuses with another gamete during fertilization (conception) in organisms that reproduce sexually. In species that ... (isogamy) or they may be ... that fuses with another gamete during fertilization (conception) in organism. Organism ... which produces the larger type of ...

Embryo

... used for centuries, to denote the series of cells that are formed after fertilization within the ovule of a flowering plant, before formation of the embryo ... ... The embryo transfer procedure is the last one of the in vitro fertilization process. ... Embryo Images Normal and Abnormal Mammalian Development ...

Zona pellucida

...... Zona pellucida domain proteins" ... zona pellucida thick membrane around the mammalian ovum; can be penetrated by one sperm in the fertilization process; usually remains around the The zona pellucida is the spherical glycoprotein shell that sur ... caused by direct titration of ...

Spermiogenesis

... and tail, ... regulation of spermatogenesis and spermiogenesis . J Steroid Biochem Mol Biol. ... Spermatogenesis and spermiogenesis . fertilization and early embryology. Uterus and endometrium ... Spermatogenesis and spermiogenesis . Get checked abstract ... Key words: spermiogenesis ...

Spermatid

... the injection pipette (Figure 2 b-1) ... Pronucleus formation in cynomolgus monkey oocytes post-round spermatid injection (ROSI) ... Since fertilization by round spermatid nucleus was first reported (Ogura and ... Round spermatid (ROS) injection into oocyte using piezo micromanipulator. ... ...

Somatic cells

... forming the body of an organism, as opposed to germline cells . In mammals, germline cells are the spermatozoa and ova which fuse during fertilization to produce a cell called a zygote, from which the entire mammalian embryo develops. Every other cell type in the mammalian body—apart from the ...

Somatic cell

... cells forming the body of an organism, as opposed to germline cells. In mammals, germline cells are the spermatozoa and ova which fuse during fertilization to produce a cell called a zygote, from which the entire mammalian embryo develops. Every other cell type in the mammalian body—apart from the ...

Somatic

... cells forming the body of an organism, as opposed to germline cells. In mammals, germline cells are the spermatozoa and ova which fuse during fertilization to produce a cell called a zygote, from which the entire mammalian embryo develops. Every other cell type in the mammalian body—apart from the ...

Sex cells

... die, ... Meiosis, a type of cell division, results in production of gametes (eggs & sperm). Genetically unique sex cells combine at fertilization to form one-of-a-kind offspring. Humans are diploid organisms with two sets of homologous chromosomes, but we also contain haploid sex ...

Self-pollination

... self - pollination , or autogamy, the pollen is transferred from the stamen to ... Self - pollination is the simpler and more certain of the two fertilization ... ... genetic material, it is called self - pollination . ... The term self - pollination is oxymoronic when used with flowers that need ...

Secondary oocyte

... a primordial germ cell (PGC) which becomes ... secondary Oocyte . haploid. Ootidogenesis (meiosis 2) Halted in metaphase II until fertilization ... with formation of a polar body and a secondary oocyte . ... What is secondary oocyte ? Meaning of secondary oocyte medical ...

Reversal

... - a judgment by a higher court that the judgment ... Reversal of Tubal Ligation on an outpatient basis is more successful then in-vitro fertilization ... Tubal ligation reversal as outpatient microsurgery ... Chicago's information source for vasectomy reversal cost and success rates, ...

Pollination

... to where the female gamete(s) are ... pollination ( ′pälə′nāshən ) ( botany ) The transfer of pollen from a stamen to a pistil; fertilization in flowering ... plants, self- pollination is difficult ... Pollination management This article is missing citations or needs footnotes. ... 2 ...

Ovulation

... ovulation , the follicle becomes a corpous luteum, a type of cyst. ... After ovulation , the egg only lives for 24 hours or less without fertilization ... 5 Ovulation suppression. 5.1 Hormonal contraception. 5.2 Lactational amenorrhea ... Learn more about the pregnancy calendar and conception ...

Oocytes

...... Spindles in live oocytes mutant for a lossof-function ncd allele fused to gfp were ... ... vitro maturation (IVM) of oocytes followed by fertilization in ... Progress with IVM has been hindered by the scarcity of suitable human oocytes for research. ... A baby girl is born with egg cells ...

Mycorrhizae

... Information, journals, abstracts and more. ... all journal articles dealing with mycorrhizae from 1991 through 2009 (over 11, ... Sub-surface fertilization versus Mycorrhizae Injections ... Mycorrhizae is a natural beneficial root fungus that helps trees and shrubs ... ... category groups: ...

Micropyle

... pollen entered the seed and caused it ... The micropyle is also where most of the action takes place ... Examination of micropyle at fertilization is difficult if eggs are large and ... surrounding the micropyle , or if they are positively buoyant in water. ... ...

Microfilament

... oocytes during meiotic maturation. ... ... examines the effects of actin microfilament -disrupting drugs on events of ... of mammalian fertilization using microfilament disruptors demonstrate that these ... The sequestering of G-actin inhibits microfilament polymerization. ... ...

Megasporangium

... result of meiosis. ... This tissue serves to protect the megasporangium . ... ... never shed from the megasporangium . WHICH MEANS THAT: ... fertilization occurs inside the megasporangium ... megasporangium surrounded by integuments = ovule ... The seed coat's most important function is to ...

Megaspore

... descibes the formation of female gametes from ovule to meiosis to megaspore division to embryo sacs, female gametes and ultimately fertilization and ... megaspore a large spore produced in a megasporangium Source: Noland, George B. 1983. ... Iverson Software: Providing Reliable & ...

Mature ovum

... when following an LH surge, a mature ovum is If they end up fertilizing the mature ova well although the patient is not ... contrary the fertilization of the mature ovum doesn't happen, the only treatment ... In humans, each mature ovum or sperm must include only 23 single (not paired) ...

Ligation

... I expect on the day of my laparoscopic tubal ligation ? ... Reversal of Tubal Ligation on an outpatient basis is more successful then in-vitro fertilization ... Tubal ligation reversal as outpatient microsurgery ... What is tubal ligation ? <div class=section1> <strong ...

Gametes

... A gamete is a cell that fuses with another gamete during fertilization (conception) in organisms that reproduce sexually. In species that produce two morphologically distinct types of gametes , and in which each ...

Fertilized egg cell

... ... the use of fertilized eggs and may ... ... and illustrate how the egg cell is fertilized and how the early pregnancy ... After fertilization the fertilized egg cell is slowly sucked through the ... ... are released from the ovary, egg cells are fertilized by these sperm ...

Fallopian Tube

... fallopian tube , called hydrosalpinx, may cause lower ... The fallopian tubes are symmetrical paired tubular organs that connect the ... fertilization of the egg by the sperm occurs in the fallopian tube . ... and sarcomas, almost all of the primary cancers of the fallopian tube ... of ...

Endosperm

... it is a ... Endosperm is also interesting from a genetic point of view because it is ... Embryo and endosperm are derived from individual fertilization events (double ... A study of endosperm in primitive flowering plants, such as the waterlily family, ... This stage of endosperm development ...

Embryology

... We can interpret them now because the science of modern Embryology affords us new understanding. ... Articles and movies following stages from fertilization through birth, embryonic disc, nervous system, heart, ear, eye, face, limbs, branchial, gastrointestinal and ... Brief and Straightforward Guide: ...

Corpus luteum

... luteum . ... Here is a closer look at the cells that make up the Corpus Luteum . ... The corpus luteum prepares the uterus in case fertilization occurs. ... produced by the corpus luteum causes the endometrium to thicken, filling with ... Information about corpus luteum in the free ...

Central cell

... for Cell Phones in Central , AL? Find Cell Phones and more in Central , AL at JustClickLocal.com During stage I (after central cell fertilization until 3 days after pollination ... Isolation and Characterization of the Central Cell ... Offers cellular phone with plan offers ...

Blastula

... other additional information on Blastula from Biology-Online.org dictionary. ... zygote, blastula , morula, gastrula, embryo gametogenesis fertilization ... Zoology information, history, articles and research from Academic Journals, Newspapers, and magazines at HighBeam.com. Free Trial, Credit ...

Blastomere

... is a type of cell produced by division of the egg after fertilization. ... In humans, blastomere formation begins immediately following fertilization and ... blastomere ( ) n. Any of the cells resulting from the cleavage of a fertilized ovum during early embryonic development ... of ...

Blastomeres

... In humans, blastomere formation begins immediately following fertilization and ... When the zygote contains 16 to 32 blastomeres it is referred to as a "morula. ... What is Blastomeres ? Meaning of ...

Apomixis

... In botany, apomixis is replacement of the normal sexual reproduction by asexual reproduction, without fertilization . Thus "normal asexual reproduction" of plants, such as propagation from cuttings or leaves, has never been considered to be apomixis , ...
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