T Cells Undergo Positive and Negative Selection

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#Id: 2671

#Unit 7. System Physiology – Animal

Paracellular reabsorption of cations causes slight positive charge of the tubular lumen relative to the interstitial fluid.

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#Id: 8603

#Unit 2. Cellular Organization

G1 Cyclin–CDKs

In human - cyclin D-CDK 4 

cyclin D-CDK 6

In budding yeast - CIn 3-Cdc 28 

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#Id: 6978

#Unit 8. Inheritance Biology

HUMAN TRISOMIES

Trisomy 18 - Edward syndrome

Trisomy 13 - Patau syndrome. 

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#Id: 2821

#Unit 13. Methods in Biology

In Ion-exchange chromatography There are two types of ion exchanger, namely cation  and anion exchangers.

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#Id: 1360

#Unit 4. Cell Communication and Cell Signaling

Receptor Homodimerization GH, prolactin, G-CSF, thrombopoietin, and Epo have similar structures & they activate receptors of similar structure by forming dimers of two identical cytokine receptor proteins.