Other EGF family receptors HER2, HER3, and HER4 do not undergo internalization after exposure to ligand

TLS Online TPP Program

#Id: 4033

#Unit 2. Cellular Organization

In some cases, the various heterochromatic regions, especially those associated with centromeres, aggregate into a densely staining chromocenter.

The common form of heterochromatin that always remains heterochromatic is called constitutive heterochromatin. 

It is permanently condensed. 

It replicates late in S phase and has a reduced frequency of genetic recombination relative to euchromatic gene rich areas of the genome.

TLS Online TPP Program

#Id: 3826

#Unit 5. Developmental Biology

The emerging column of cells topples over called ‘the slug’

24 KDa glycoprotein (gp 24)- Ddcad1

80 KDa glycoprotein (gp 80)- Csa A

150 KDa glycoprotein (gp 150)- Lag C

TLS Online TPP Program

#Id: 4966

#Unit 6. System Physiology – Plant

Change surface charge

Red light-treated barley root tips adhered to the sides of a beaker (with a negatively charged surface) but released after far red treatment, caused the surface to become positively charged and far red light negatively charged.

TLS Online TPP Program

#Id: 911

#Unit 13. Methods in Biology

The more metabolically active cells that are present in the culture, the more formazan will be generated, and so this assay provides a readout of the number of live cells as a function of time.

TLS Online TPP Program

#Id: 828

#Unit 4. Cell Communication and Cell Signaling

ETI invasion by pathogen causes selection of novel R gene variants that can recognize other pathogen effector molecules and then activate defense.