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TLS Online TPP Program

#Id: 4018

When the potential reaches a threshold voltage of about −40 millivolts, the L-type calcium channels become “activated,” causing the action potential



#Unit 7. System Physiology – Animal #Blood pressure, neural and chemical regulation of Cardiovascular System #Part B Pointers
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TLS Online TPP Program

#Id: 4785

#Unit 5. Developmental Biology

The P2 cell produces juxtacrine protein APX-1(a Delta homologue)
TLS Online TPP Program

#Id: 2461

#Unit 13. Methods in Biology

Electrophoresis can be performed in two environment 


In free solution - Moving boundary electrophoresis (A. G. Tiselius) & CE


n the medium  -  GEL ( Agarose & PAGE )
TLS Online TPP Program

#Id: 178

#Unit 5. Developmental Biology

Epithelial-mesenchymal interactions
the interactions of sheets of epithelial cells with adjacent mesenchymal cells.
TLS Online TPP Program

#Id: 2829

#Unit 13. Methods in Biology

Affinity chromatography exploits the unique property of extremely specific biological interactions to achieve separation and purification.
TLS Online TPP Program

#Id: 3968

#Unit 2. Cellular Organization

Each domain consists of -40 kilobases of DNA, or may be smaller, 10 kb each. About -400 domains in the E. coli genome. The ends of the domains appear to be randomly distributed instead of located at predetermined sites on the chromosome.