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An Overview of Embryonic Stem Cells

... These cells could be expanded continuously in culture and could also be induced to differentiate into derivatives of all three embryonic germ layers; endoderm, ectoderm and mesoderm. Murine ES cells were first isolated in 1981 by the use of culture techniques based on experience with the culture ...

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by 2444256703
Thu Jan 29, 2015 6:48 am
Forum: Cell Biology
Topic: An Overview of Embryonic Stem Cells
Replies: 0
Views: 565

What is Epidermis,Hypodermis and endodermis of plants?

... Outermost protective thin layer of the stem(just like the epidermis of or skin-kind-of-analogy!) Note:- Hypodermis and endodermis are the layers present in the cortex region of a stem 2) Hypodermis: This layer consists of collenchymatous cells-which are used to provide mechanical strength-esp. ...

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by Athira
Thu Jan 15, 2015 4:20 pm
Forum: Botany Discussion
Topic: What is Epidermis,Hypodermis and endodermis of plants?
Replies: 2
Views: 2696

Stem Cells and Cell division?

... 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 and the epidermis (skin and associated ...

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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: 5399


... that I would like to ask: if you do the experiment as you are saying, wouldn't the atmospheric oxygen simply permeate the agar to the bottom layers? Further, the organisms at the top would produce reactive oxygen species that could affect the anaerobes, so they would still not survive greatly. ...

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by sosippus
Wed Sep 24, 2014 7:44 pm
Forum: Microbiology
Topic: Oxygen requirements of eukaryotes
Replies: 7
Views: 4459

Re: Vitamin D absorption for different skin types

... to be an area that is just beginning to draw research interest. Darker skin evolved in high light-exposure populations to protect deeper skin layers from UV damage, but tones lightened in pops with lower exposure, to allow enough UV to reach the D-generating skin tissues. Dark-skinned people ...

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by Darby
Tue Jul 15, 2014 7:39 pm
Forum: Human Biology
Topic: Vitamin D absorption for different skin types
Replies: 2
Views: 2086
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