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{{r|Embryo}}

{{r|Embryo}}

...them, to grow into newly reproduced offspring, often through an early '''[[embryo]]''' stage. This process of redistributing the genes in sexual reproductio ...''live birth''' is given to the offsping. This period of time when the '''embryo''' or '''[[fetus]]''' is growing and developing inside the female parent's

{{r|Embryo}}

...'' or '''organizing centers''' are cells located in certain regions of the embryo coordinating [[morphogenesis]] which communicate with each other "via a net

==The development of the ovaries in the embryo== In humans, like all mammals, germ cells proliferate outside of the embryo proper and then migrate into the gonad. Here, in the embryonic ovary, these

...alpha-[[globulin]]s to appear in mammalian sera during development of the embryo and the dominant serum proteins in early embryonic life. Their level drops

...nal slice.jpg|right|350px|[[Coronal section]] in the [[forebrain]] of an [[embryo]]nic [[mouse]] at 12.5 days of [[gestation]] ([[preplate stage]]), showing

...is [[tetraploid]]. However, it does have a large and easily manipulable [[embryo]]. The ease of manipulation in [[amphibia]]n embryos has given them an impo ...e oligos into the oocyte (for distribution throughout the embryo) or early embryo (for distribution only into daughter cells of the injected cell).<ref>[http

...hese approaches include ''in vitro'' techniques such as protoplast fusion, embryo rescue or mutagenisis (see below) to generate genetic alterations and produ ...d and cultured to produce a whole plant. Such a method is referred to as ''Embryo Rescue''. This technique has been used to produce [[New Rice for Africa|new

...hese recombinant [[stem cell]]s may then be introduced into a developing [[embryo]], where they will divide like other cells and eventually give rise to whol

#[[Microinject]] the posterior end of an early-stage (pre-cellularization) [[embryo]] with coding for transposase and a plasmid with the reporter gene, gene of #Microinject the embryo with coding for transposase and a plasmid with the reporter gene and transp

...y|cryobiologist]]s to reduce ice formation in [[spermatozoon|sperm]] and [[embryo]]s that are cold-preserved in [[liquid nitrogen]].

The normal human embryo hemoglobin has two ζ-chains and two ε-chains.

...sion of genes that allow cells to properly differentiate in the developing embryo. A recent study examined this phenomenon in mice and found that 37.5% of e ..."Mann">Mann MRW, Bartolomei MS: "Epigenetic reprogramming in the mammalian embryo: struggle of the clones", Genome Biology 2002, 3(2):reviews 1003.1 - 1003.4

...omatic]] cells, [[germ]] cells, and certain cells that exist outside the [[embryo]] and are important to [[fetal development]] that are termed extraembryonic ...ult stem cells, or embryonic stem cells, which may be derived from a human embryo in the [[blastocyst]] stage. The use of embryonic stem cells has been a so

...llion years ago. They have a brief [[gestation]] and give birth to tiny [[embryo]]nic offspring that complete development while attached to the mothers [[ni

...e dies and then degenerates, leaving only a [[cyst]] of [[cuticle]], its [[embryo]] differentiates into a [[chordoid]] larva<ref name=Funch1996 />. The larva

...tilized ovum, and is the single cell that is the very earliest stage of an embryo. If no pregnancy is established, this endometrial lining is shed as menstru

...''' is the build-up of the [[central nervous system]], starting with the [[embryo]]nic [[ectoderm|ectodermal cell]]s and transforming into the complex adult

...The primary factor is not a set of genes, but the temperature at which the embryo is incubated during this period.

...ian tube obstruction, then in virto fertilization with implantation of the embryo in the uterus is sometimes successful.

...ments.jpg|thumb|right|200px|Actin cytoskeleton of [[mus_musculus|mouse]] [[embryo]] [[fibroblast]]s, stained with [[phalloidin]]]]

2. Cryopreservation of cells, tissues, [[gamete]]s, and [[embryo]]s of animal and human origin for (medical) purposes of long-term storage. ...uid nitrogen]] temperature ([[cryopreservation]]). Human sperm, eggs and [[embryo]]s are routinely stored in [[fertility]] research and treatments. In the ea

...tered such as to cripple its function. The construct is then taken up by [[embryo]]nic [[stem cells]], where the engineered copy of the gene replaces the org

...school at Grenoble, of which he was the director from 1764-1771, came the embryo from which evolved the Napoleonic staff, of which Berthier was the preemine

...constant. In women, this is not the case. The female's contribution to the embryo is the ovum, which is always produced periodically instead of constantly, a

...te into the uterus through the fallopian tubes, and the implantation of an embryo in the lining of the uterus. Sometimes, a woman can establish a pregnancy,

...he opportunity to fuse with an [[egg (human)|egg]] to form an [[embryology|embryo]], very often acts of sex do not eventually lead to the [[childbirth|birth]

# [[Seedling]]: the above-ground part of the embryo that sprouts from the seed

...hat are essential for development, and often disrupt the development of an embryo in its earliest stages. Because these mutations have very serious effects,

...-800</ref>. [[HAR1]] is an RNA gene that is expressed in the early neural embryo genesis. Through re-sequencing studies, David Hausler et.al indicated that

...arrow]] of large bones, at a rate of about 2 million per second. (In the [[embryo]], the [[liver]] is the main site of red blood cell production.) The produc

...ally develop from one, two, or three [[germ layer|tissue layers]] in the [[embryo]] stage, depending upon the kind of animal it is. [[Sponge]] embryos have o ...starts out as one, solitary cell that divides into a new, multicellular [[embryo]]. Either one—generally the female—or both parents care for their new e

...school at Grenoble, of which he was the director from 1764-1771, came the embryo from which evolved the Napoleonic staff, of which Berthier was the preemine

...two Thoroughbred parents, but by means of [[artificial insemination]] or [[embryo transfer]] is barred from the Thoroughbred studbook. Any Thoroughbred bred ...ntage, most breed registries now allow [[artificial insemination]] (AI), [[embryo transfer]] (ET), or both. The high value of stallions has helped with the

14. Berthoud VM, Bassnett S, and Beyer EC. (1999). Cultured chicken embryo lens cells resemble differentiating fiber cells in vivo and contain two kin

...to existing crops, it also uses artificial means for gene transfer such as embryo rescue and biolistics to overcome natural barriers to [[gene flow]] between ...using protoplast fusion ([[somatic hybridization]]) can also be used, and embryo rescue methods can also circumvent gene-flow barriers.

In the embryo and fetus, development proceeds in a predictable fashion. In general, in al

An embryo of a Spotten Dolphin in the fifth week of development. The hind limbs are p

...inous and hard [[endocarp]], which contains a [[seed]] with a diminutive [[embryo]] and abundant [[endosperm]]. The seed makes up about 80% of the fruit.

Caption2 = Median sagittal section of brain of human embryo of three months. (Hypothalamus visible at center) |

...an clawed [[frog]] - used in developmental biology because of its large [[embryo]]s and high tolerance for physical and pharmacological manipulation

...itical and philosophical reflections and vivid descriptions of nature. An embryo, two-part, version of 1799 has been derived from the manuscripts.<ref>Words

|discovery of the organizing center in [[embryo]]nic development

...al") twins]], a [[cloning|clone]] resulting from the early splitting of an embryo, have the same DNA, but different [[personality|personalities]] and [[finge

|title=Substrate requirements for let-7 function in the developing zebrafish embryo

...strogen]]s. Steroids play an important role at all stages of life from the embryo until death. [[Corticosteroids]], or synthetic mimics such as [[prednisone

...nesday Write-a-thons currently collide with the [http://embryophysics.org/ Embryo Physics Course] that I participate in. Will try to add something about [[Al

...P elements can be used to insert genes into Drosophila by injecting the [[embryo]]. For the use of P elements as a genetic tool see: "[[transposons as a gen