A precipitation curve for a system of one antigen and its antibodies. This plot of the amount of antibody precipitated versus increasing antigen concentrations (at constant total antibody) reveals three zones: 

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#Id: 7001

#Unit 5. Developmental Biology

When a multipotent stem cell divides asymmetrically, its maturing daughter cell often goes through a transition stage as a progenitor or transit-amplifying cell, as is seen in the formation of blood cells, sperm, and neurons.

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#Id: 5719

#Unit 10. Ecological Principles

Plant life form – On basis of position of bud  

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#Id: 2023

#Unit 8. Inheritance Biology

Prototrophs– Wild type

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#Id: 2406

#Unit 3. Fundamental Processes

RNA polymerase performs two proofreading functions on that growing transcript

pyrophosphorolytic editing

hydrolytic editing

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#Id: 1276

#Unit 7. System Physiology – Animal

Cortisol induces the synthesis of lipocortin, an inhibitor of the enzyme PLA2.