TLS Online TPP Program

#Id: 9619

#Unit 4. Cell Communication and Cell Signaling

HER2 (mouse Erb-B2), cannot bind any ligand, it can form a heterodimer with ligand-activated HER1, HER3, or HER4 (Erb-B1, 3, or 4)

TLS Online TPP Program

#Id: 10430

#Unit 4. Cell Communication and Cell Signaling

SWI/SNF normally plays a role in repressing the E2F genes, inhibiting progression through the cell cycle.

TLS Online TPP Program

#Id: 6981

#Unit 5. Developmental Biology

A stem cell retains the ability to divide and re-create itself while also having the ability to generate progeny capable of specializing into a more differentiated cell type. 

TLS Online TPP Program

#Id: 645

#Unit 3. Fundamental Processes

hydroxylating agent hydroxylamine (NH2OH) induces only G:C → A:T transitions not reversal.

TLS Online TPP Program

#Id: 626

#Unit 2. Cellular Organization

In case of Low trp concentration, RNA polymerase continues to EDCBA genes where new ribosome get attached to AUG of polycistronic genes