Ubiquitin-Protein Ligases-

APC/CCdc20 - Degradation of securin, initiating anaphase, Induces degradation of B-type cyclins

TLS Online TPP Program

#Id: 5563

#Unit 7. System Physiology – Animal

This gradient is produced by the operation of the loops of Henle as countercurrent multipliers and maintained by the operation of the vasa recta as countercurrent

exchangers 

TLS Online TPP Program

#Id: 5535

#Unit 7. System Physiology – Animal

The ascending limb, both the thin & the thick segments is virtually impermeable to water, a characteristic that is important for concentrating the urine.

TLS Online TPP Program

#Id: 8057

#Unit 1. Molecules and their Interaction Relevant to Biology

Cysteine, tryptophan, and methionine are not common amino acids: together, they constitute approximately 5 percent of the amino acids in a typical protein. Four amino acids—leucine, serine, lysine, and glutamic acid—are the most abundant amino acids, constituting 32 percent of all the residues in a typical protein.

TLS Online TPP Program

#Id: 3117

#Unit 3. Fundamental Processes

The origin of E. coli, oriC, is 245 bp in length. The genome of E. coli is replicated bidirectionally from a single unique site called the origin, identified as the genetic locus oriC.

Two replication forks initiate atoriCand move around the genome at approximately the same speed to a special termination region.

TLS Online TPP Program

#Id: 1430

#Unit 4. Cell Communication and Cell Signaling

Integrins are involved in biological activities, includes: 

Extravasation

Cell-to-cell adhesion

Cell migration

Receptors for certain viruses

Angiogenesis

Apoptosis