Thymic selection

The most distinctive property of the mature T cells is that they recognize only foreign antigen combined with self-MHC molecules.

TLS Online TPP Program

#Id: 6563

#Unit 7. System Physiology – Animal

The glucagon receptor, found primarily on liver cells, is coupled to the Gαs protein, to activate adenylyl cyclase and increase intracellular cAMP

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#Id: 1676

#Unit 4. Cell Communication and Cell Signaling

mRNA vaccine- Moderna covid vaccine

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#Id: 5275

#Unit 7. System Physiology – Animal

L-type calcium channels become inactivated (i.e., they close) within about 100 to 150 milliseconds after opening

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#Id: 5727

#Unit 10. Ecological Principles

The Species-Energy Hypothesis

Available energy determines species richness.

Increased solar energy, together with an abundance of water, results in high productivity of plants.

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#Id: 4646

#Unit 13. Methods in Biology

Diphenyltetrazolium bromide, a yellow tetrazole is reduced by metabolically active cells to form insoluble, purple formazan dye crystals detected at 570nm