Binding of ligand to predimerized but inactive RTK alters the conformation of the dimer in such a way that the receptor’s kinase becomes activated.

TLS Online TPP Program

#Id: 9203

#XL - T Zoology

Balance natural selection

Balancing selection is a type of natural selection that maintains genetic diversity in a population.

In balancing selection, two or more alleles are kept in balance, and therefore are  maintained in a population over the course of many generations.

TLS Online TPP Program

#Id: 8769

#XL - T Zoology

TLS Online TPP Program

#Id: 10027

#XL - T Zoology

NF-κB stimulates expression of several anti-apoptotic proteins, including FLIP, Bcl-XL, A1/Bfl-1, c-IAP, XIAP, TRAF1, and TRAF2.

TLS Online TPP Program

#Id: 10371

#XL - Q Biochemistry

A given MHC molecule can bind numerous different peptides, and some peptides can bind to several different MHC molecules. Because of this MHC molecule is often referred to as “promiscuous”.

TLS Online TPP Program

#Id: 9271

#XL - Q Biochemistry