There are two components for Cl− reabsorption:

Transcellular

Paracellular

TLS Online TPP Program

#Id: 3700

#Unit 2. Cellular Organization

Deletions in two genes, neither of which is lethal by itself, are introduced into the same strain. If the double mutant dies, the strain is called a synthetic lethal. This technique has been used to great effect with yeast, where the isolation of double mutants can be automated. The procedure is called synthetic genetic array analysis (SGA)

TLS Online TPP Program

#Id: 9615

#Unit 4. Cell Communication and Cell Signaling

Four related EGF receptors participate in signaling by the many members of EGF family :

In the mouse - Erb-B1, 2, 3, and 4

In humans - HER 1, 2, 3, and 4

TLS Online TPP Program

#Id: 2418

#Unit 3. Fundamental Processes

he ability of the enzyme to terminate in vitro, however, is strongly influenced by parameters such as the ionic strength and temperature at which the reaction is performed.

TLS Online TPP Program

#Id: 6282

#Unit 3. Fundamental Processes

significantly higher dissociation rate at 25C than at 37C, and a much higher dissociation rate at 15C. Because high temperature promotes DNA melting

TLS Online TPP Program

#Id: 8527

#Unit 2. Cellular Organization

Kinesin-1 associates preferentially with detyrosylated and acetylated microtubules.