The Bio-Rad Silver Stain, Rev E
...n in stained polyacrylamide gels, Anal Biochem 141, 311315
(1984)
65. Noll H et al., Characterization of toposomes from sea urchin
blastula
cells: a cell organelle mediating cell adhesion and expressing positional
information, Proc Natl Acad Sci USA 82, 80628066 (1985...
Blastula in Biological Definition
Blastula
The
blastula is an early stage of embryonic development in animals . It is produced by cleavage of a fertilized ovum and consisting of a spherical layer of cells surrounding a fluid-filled cavity. The
blastula follows the morula and precedes the gastrula in the development sequence. A ...
Blastomere
...A blastomere is the structure which results from the divisions of a fertilised egg during embryonic development .
See also
blastocoel
blastula
morula
...
Developmental biology
... proteins are among the key regulators of morphogenesis.
Concepts in developmental biology
allantois , amnion , blastocyst , blastomere ,
blastula , blastulation , chorion , chrysalis , cleavage , ectoderm , embryo , embryogenesis , embryogeny , embryology , endoderm , extra-embryonic mem...
Embryo
...ore advanced stage of development and up until birth or hatching. In humans, this is from the eighth week of gestation .
Stages : morula ->
blastula -> gastrula .
See also
Embryogenesis
Embryology
In vitro fertilization
Plant embryogenesis
Embryo space colonization
...
Morphogenesis
...acteristic forms of tissues , organs and overall body anatomy . In the human embryo, the change from a cluster of nearly identical cells at the
blastula stage to a post- gastrulation embryo with structured tissues and organs is controlled by the genetic "program" and can be modified by environmen...
Gastrula
... The gastrula phase of embryonic development is seen in all animals except the sponges . It follows the
blastula phase. The gastrula phase is marked by a dramatic restructuring called gastrulation . After gastrulation is complete, the embryo develops into a n...
Morula
...d cell division of the zygote with virtually no growth. The morula is a solid ball; after the 64-cell phase, it develops into a hollow ball, the
blastula .
...
Morphogenesis
...acteristic forms of tissues , organs and overall body anatomy . In the human embryo, the change from a cluster of nearly identical cells at the
blastula stage to a post- gastrulation embryo with structured tissues and organs is controlled by the genetic "program" and can be modified by environmen...
Blastula in Biological Dictionary
Blastula
The
blastula , meaning "sprout") is an early stage of embryonic development in animals. It is also called blastosphere. It is produced by cleavage of a fertilized ovum and consists of a spherical layer of around 128 cells with a large fluid filled space called the blastocoel in t...
Yolk plug
...ation of the ventral lip of the blastopore. It is a patch of large endodermal cells which remains exposed on the vegetal surface of the amphibian
blastula that will eventually be internalized by epiboly. Frog yolk plug . This embryo is near the end of gastrulation. ... overlying the archenteron...
Primitive streak
...cess of gastrulation is complete the primitive streak disappears. ... The primitive gut that forms during gastrulation in the developing
blastula is ... blastopore in amphibians and fish, and the primitive streak in birds and mammals. ... Britannica online encyclopedia article on prim...
Morula
... in a solid ball contained within the zona pellucida. morula n. , pl. -lae ( ). The spherical embryonic mass of blastomeres formed before the
blastula and resulting from cleavage of the fertilized ovum CE SITE EN CONSTRUCTION AGRÈGE PLUSIEURS SOUS-SITES, TOTALEMENT INDÉPENDANTS LES ... ILS PEUV...
Germinal disc
...tion about germinal disc in the free online ... germinal disc . Also found in: ... germinal disc - a layer of cells on the inside of the
blastula ... Germinal disc - Wikipedia, the free encyclopedia ... Eggs From A To Z - Germinal Disc ... germinal disk : Definition from Answers.co...
Gastrulation
...ars. ... 3. Mammals - gastrulation similar to birds and reptiles, even though eggs possess little yolk. ... AMPHIOXUS GASTRULATION . A. Wall of
blastula flattens and ... In the simplest terms, gastrulation is a stage in early development; in human ... Do all amniotes go through gastrulation a...
Gastrula
...e hollow, single-layered ball of cells called a
blastula which itself is the product of the repeated cell...ncyclopedia. ... The gastrula develops from the
blastula by invagination (inpocketing), forming ... Def...meric zebrafish embryos by transplantation at the
blastula or gastrula stage. ... chimera, zebrafish embry...
Blastoderm
...s at Britannica. Assorted References formation by
blastula ( in
blastula (biology) ) ...sphere of cells, or blastomeres, p...cleavage of a fertilized egg. The cells of the
blastula form an epithelial (covering) layer, called the.....
Blastocyst
...siologic ... Note: click on a word meaning below to see its connections and related words. The noun blastocyst has one meaning: Meaning #1 : the
blastula of Blastocyst transfer increases success rates and lowers the chances of multiple births. ... Blastocyst Transfer ... A blastocyst is an em...
Blastocoel
...s at Britannica. Assorted References formation by
blastula ( in
blastula (biology) ) ...the development of an embryo by ...cleavage of a fertilized egg. The cells of the
blastula form an epithelial (covering) layer, called the b...