Unobstructed direct light passes through a region of the phase plate that both transmits only a small percentage of the light and changes its phase slightly

TLS Online TPP Program

#Id: 8646

#Unit 2. Cellular Organization

One of the important substrates of the G1/S phase cyclin-CDK complexes is Cdh1.

TLS Online TPP Program

#Id: 1597

#Unit 5. Developmental Biology

Mediolateral intercalation in the formation of the primitive streak (Cellular Dance Mechanism) cells came down the sides of the epiblast to undergo a medially directed intercalation of cells in the posterior margin

TLS Online TPP Program

#Id: 4631

#Unit 13. Methods in Biology

Competitive ELISA. In this technique, antibody is first incubated in solution with a sample containing antigen. The antigen-antibody mixture is then added to an antigen coated microtiter well.
The more antigen present in the sample, the less free antibody will be available to bind to the antigen-coated well. 
Addition of an enzyme-conjugated secondary antibody (Ab2) specific for the isotype of the primary antibody can be used to determine the amount of primary antibody bound to the well as in an indirect ELISA. 
In the competitive assay, however, the higher the concentration of antigen in the original sample, the lower the absorbance.

TLS Online TPP Program

#Id: 1493

#Unit 4. Cell Communication and Cell Signaling

MDM2 inhibits p53  by targeting it to the ubiquitin-dependent proteosomal degradation pathway.

TLS Online TPP Program

#Id: 8675

#Unit 1. Molecules and their Interaction Relevant to Biology

Insulin activates

GluT4

Hexokinase

Glycogen Synthase