B-cell activation

TLS Online TPP Program

#Id: 8032

#Section 2: General Biology

Ornithine and citrulline, which are not found in proteins, are intermediates in the biosynthesis of arginine and in the urea cycle.

TLS Online TPP Program

#Id: 3775

#Section 2: General Biology

The electrons revolve in orbits around the nucleus.

TLS Online TPP Program

#Id: 8881

#Section 3: Genetics, Cellular and Molecular Biology

Plk1 is critical for formation of the mitotic spindle as well as for chromosome segregation.

TLS Online TPP Program

#Id: 7928

#Section 3: Genetics, Cellular and Molecular Biology

Muscle cells have an abundant, modified smooth ER called the sarcoplasmic reticulum.

The release and reuptake of Ca2+ by the sarcoplasmic reticulum trigger myofibril contraction and relaxation, respectively

TLS Online TPP Program

#Id: 8862

#Section 3: Genetics, Cellular and Molecular Biology

In vertebrates, stabilization of cohesins requires the cohesin-associated factor sororin.