Scatchard plots are based on repeated equilibrium dialyses with a constant concentration of antibody and varying concentration of ligand. 
If all antibodies have the same affinity, then a Scatchard plot yields a straight line with a slope of Ka. The x intercept is n, the valency of the antibody, which is 2 for IgG and other divalent Igs. For IgM, which is pentameric, n  10, and for dimeric IgA, n  4. In this graph, antibody #1 has a higher affinity than antibody #2.

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#Id: 2198

#Unit 10. Ecological Principles

Character                         early stage         late stage 

Root to shoot ratio                    high             low

Number of seed                         many            few

Seed size                                     small            large

Biotic potential                           high             low

Productivity per biomass           high             low

NPP                                              high             low

P/R ratio                                        >1               =1

Nutrient cycling                       open             closed

Importance of detrivores          less              more

Stratification                               No               Yes 

Regeneration ability                 more              less

Resistance ability                        less              more

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#Id: 8353

#Unit 2. Cellular Organization

A second NPF is a large protein complex called WAVE

and requires small GTP-binding protein Rac1.

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#Id: 3033

#Unit 3. Fundamental Processes

The two cores have different abilities to dissociate from DNA. This corresponds to the need to synthesize 

a continuous leading strand (where polymerase remains associated  with the template) and 

a discontinuous lagging strand (where polymerase repetitively dissociates and reassociates)

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#Id: 121

#Unit 5. Developmental Biology

The development of the vertebrate eye is a classic example used to describe the modus operandi of tissue organization via intercellular interactions.

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#Id: 1578

#Unit 4. Cell Communication and Cell Signaling

Active Wnt signaling leads to the secretion of Notum.