T-Cell Development

Commitment of hematopoietic precursors to the T cell lineage

The initiation of antigen receptor gene rearrangements

The selection and expansion of cells that have successfully rearranged one of their T-cell receptor genes (-selection). 

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#Unit 10. Ecological Principles

Major component of ecological niche

1. Space Habitat

2. Eating habit

3. Environmental variant

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#Unit 7. System Physiology – Animal

Orthograde transport has:

Fast axonal transport occurs at about 400 mm/day 

Slow axonal transport occurs at 0.5 to 10 mm/day

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#Unit 4. Cell Communication and Cell Signaling

B- cell maturation

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#Unit 3. Fundamental Processes

The carcinogenic effects of ionizing radiation and oxidizing agents are partly caused by free radicals that convert guanine to oxoG.

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#Unit 5. Developmental Biology

Newly activated genes are:

Adenylate cyclase A (ACA)

PKA

cAMP receptors (cARs)

Extracellular cAMP phosphodiesterase PdsA

An intracellular cAMP phosphodiesterase RegA