Necrosis

occurs when cells are subjected to injury or excessive stresses, such as heat, absence of oxygen, or infection

by pathogens & marked by swelling and bursting of cells with release of their contents.

TLS Online TPP Program

#Id: 7040

#Unit 11. Evolution and Behavior

Populational change is Darwin’s hypothesis that evolution occurs by changes in the proportions (frequencies) of different variant kinds of individuals within a population.

TLS Online TPP Program

#Id: 2480

#Unit 13. Methods in Biology

TBE gives superior separation of smaller fragments (< 2 kb) in comparison to TAE and is often used for separation of small RNA molecules such as microRNA.

TLS Online TPP Program

#Id: 3524

#Unit 2. Cellular Organization

The coexistence of multiple alleles at a locus in a population is called genetic polymorphism. A locus is usually defined as polymorphic if two or more alleles are present at a frequency of more than 1% in the population.

TLS Online TPP Program

#Id: 1619

#Unit 4. Cell Communication and Cell Signaling

IL-10 and TGF-β regulate inflammation.

TLS Online TPP Program

#Id: 5952

#Unit 10. Ecological Principles

Consumption efficiencies  Forests range from 1–2%.  In grasslands, most plants are non woody range from 30–60%.  In aquatic ecosystems (most plant and algal biomass can be consumed by herbivores) range from  60–99%.