Neogene- Increasingly cool, dry climate; grasslands spread; modern families of mammals and birds; first apes

TLS Online TPP Program

#Id: 5382

#Unit 10. Ecological Principles

Perfect compensation hypothesis

TLS Online TPP Program

#Id: 10302

#Unit 4. Cell Communication and Cell Signaling

Positive Costimulatory Receptors: ICOS

ICOS binds to another member of the growing B7 family, ICOS-ligand (ICOS-L), which is also expressed on a subset of activated APCs.

ICOS plays a key role in maintaining the activity of already differentiated effector and memory T cells.

TLS Online TPP Program

#Id: 901

#Unit 13. Methods in Biology

Alkaline phosphatase Removes 5’ phosphates from DNA and RNA.

TLS Online TPP Program

#Id: 1248

#Unit 7. System Physiology – Animal

Before puberty, growth hormone excess causes gigantism

TLS Online TPP Program

#Id: 6475

#Unit 3. Fundamental Processes

RNA Polymerase III promoters are bipartite

The exception is in yeast, where the TATA box is more typically found at -90.