The nucleosome is a disc of 11 nm diameter and 6 nm height. 2πrh is surface are and πr2h is volume of nucleosome

 

TLS Online TPP Program

#Id: 8390

#Unit 2. Cellular Organization

In vertebrate smooth muscle, phosphorylation of the myosin regulatory light chain activates contraction in Ca2+ dependent manner.

TLS Online TPP Program

#Id: 8372

#Unit 2. Cellular Organization

Thick-filament regulation

Myosin-dependent mechanism regulate contraction in smooth muscle and non-muscle cells.

TLS Online TPP Program

#Id: 2478

#Unit 13. Methods in Biology

The most commonly used buffer for separating DNA is TRIS-acetate containing EDTA ( TAE) with a typical pH of 8.3 and used to dissolve the matrix (agarose) as well as the running buffer. 

TLS Online TPP Program

#Id: 1723

#Unit 4. Cell Communication and Cell Signaling

CD23a is found on activated B cells, whereas CD23b is induced on various cell types by the cytokine IL-4.

TLS Online TPP Program

#Id: 2371

#Unit 5. Developmental Biology

In regenerating planaria, β-catenin is activated in the posterior-facing blastema, which generates a tail.