One individual, however, expresses only a small number of these molecules—up to six different class I molecules and 12 or more different class II molecules.

TLS Online TPP Program

#Id: 10287

#Section 2: General Biology

T-Cell - Cells leaving the thymus are functional, mature T cells expressing unique and specific T-cell receptors (TCRs) that are both tolerant to self and restricted to self-MHC.

TLS Online TPP Program

#Id: 8617

#Section 3: Genetics, Cellular and Molecular Biology

Wee1 kinase Inhibits CDKs in all organisms

TLS Online TPP Program

#Id: 10299

#Section 2: General Biology

Lineage commitment

TLS Online TPP Program

#Id: 8170

#Section 3: Genetics, Cellular and Molecular Biology

In yeast Rab protein is the Sec4 and its effectors are exocyst and Type V Myosin.

TLS Online TPP Program

#Id: 8960

#Section 3: Genetics, Cellular and Molecular Biology

Duplicate gene and its parental copy can subfunctionalize so that each carries out only some of the roles that the ancestral gene performed. 

Ex- a duplicate of the β-hemoglobin locus is expressed in the fetus.