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Gastrula

Gastrula

embryonic stage of an animal when gastrulation occurs, follows blastula stage.


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Stem Cells and Cell division?

... cell mass develops into the fetus. Beyond the blastocyst stage, development is characterized by cell migration in addition to cell division. The gastrula is composed of three germ layers: the ectoderm, mesoderm and endoderm. The outer layer or ectoderm gives rise to the future nervous system ...

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by RZachary1
Wed Jan 14, 2015 5:51 am
 
Forum: Cell Biology
Topic: Stem Cells and Cell division?
Replies: 6
Views: 5530

Evolution of the Face and Head

... (mouth second) and insects protostoma (mouth first): when the embryo develops from a solid ball into a blastula (a hollow sphere) into gastrula a hollow sphere with an opening), the first opening becomes the mouth in protostoma, but the anus in deuterostoma. So after the true gut evolved ...

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by stauffie
Mon May 07, 2012 12:42 am
 
Forum: Evolution
Topic: Evolution of the Face and Head
Replies: 5
Views: 5356

Differentiation doubt

... a kidney or any cell for that matter because they know it from their parent cell. But when we start from the zygote,and cells go through morula ,gastrula,blastula stages,and the three germ layers,how does the cell know at that time which genes to activate in order to make a given cell a neuron,cardiac ...

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by mayanks_098
Tue Mar 25, 2008 2:18 pm
 
Forum: Molecular Biology
Topic: Differentiation doubt
Replies: 1
Views: 1703

Embryo Development

zygote, blastula, morula, gastrula, embryo gametogenesis fertilization blastulation gastrulation neurulation= only in Chordates organogenesis Hope this helps.

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by Volvox
Thu Mar 22, 2007 3:18 am
 
Forum: Human Biology
Topic: Embryo Development
Replies: 8
Views: 6820

Embryo Development

Maybe zygot - morulla - blastula - gastrula - neurula things? :?

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by Dr.Stein
Wed Mar 21, 2007 1:27 am
 
Forum: Human Biology
Topic: Embryo Development
Replies: 8
Views: 6820
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