Integrins function as transmembrane linkers (integrators) between the extracellular matrix and the actin cytoskeleton.

TLS Online TPP Program

#Id: 1564

#Unit 4. Cell Communication and Cell Signaling

Upon secretion, Wnt proteins associate with glypicans (heparan sulfate proteoglycan) in the ECM, which restricts diffusion and leads to a greater accumulation of Wnt closer to the source of production.

TLS Online TPP Program

#Id: 3999

#Unit 2. Cellular Organization

Interphase chromatin remain attached to nuclear wall proteins via matrix attachment regions (MARs) or matrix attachment DNA sequences.

TLS Online TPP Program

#Id: 3008

#Unit 3. Fundamental Processes

That not all of the fragment population represents bona fide Okazaki fragments; some are pseudo fragments that have been generated by breakage in a DNA strand that actually was synthesized as a continuous chain. The source of this breakage is the incorporation of some uracil into DNA in place of thymine. When the uracil is removed by a repair system, the leading strand has breaks until a thymine is inserted. 

TLS Online TPP Program

#Id: 8240

#Unit 10. Ecological Principles

Geometric growth can follow reintroduction of a population in a habitat

TLS Online TPP Program

#Id: 9734

#Unit 6. System Physiology – Plant

To store, toxic secondary metabolites is to conjugate them with a sugar, which also makes them more water soluble