When the potential gradient E is applied, the force F on a molecule bearing a charge of Q  sepreated  by distance d (measured in coulombs) is                  (in newton). 

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#Id: 5814

#Unit 7. System Physiology – Animal

The synthesis and secretion of steroid hormones by the adrenal cortex depend on the stimulation of cholesterol desmolase by ACTH

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#Id: 422

#Unit 2. Cellular Organization

The nucleosome is of 10nm/100A diameter, compacting the DNA about 6-fold over the length of naked DNA. Its first level of organization. 200X3.4A=680A

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#Id: 2747

#Unit 13. Methods in Biology

RAPDs (Random amplified polymorphic DNAs) are obtained by using a PCR (polymerase chain reaction) equipment or a thermal cycler. 

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#Id: 6044

#Unit 10. Ecological Principles

Precipitation and temperature, two primary non biological factors have major impacts on the biome Periodic fires are important in maintaining some grassland and shrub climax communities 

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#Id: 1357

#Unit 4. Cell Communication and Cell Signaling

Family of Cytokines

• Interleukins

• Interferons

• Growth hormone

• Prolactin

• Granulocyte colony–stimulating factor

• Thrombopoietin

• Erythropoietin (Epo)