Which of the following turns off an RTK signaling pathway by shutting off the receptor?Group of answer choicesKinasesPhosphatasesGAPsGEFs

The kinase that phosphorylates a receptor tyrosine kinase (RTK) is:Group of answer choicesRasMAP kinaseRTK itselfAkt

Molecules that bind to a receptor and trigger signaling pathways are called                           Group of answer choicesagonistsantagonistsIRE-binding proteinspromotersligands

Which statement is correct regarding CDK?Group of answer choicesPhosphorylation of Tyr-15 activates CDK.It contains a destruction box which allows it to be ubiquitinated by the DBRP.It is an enzyme that removes phosphate groups from other proteins.Phosphatases are required for the activation of CDK.

An kinase enzyme that is active only when attached to a particular cyclin.Group of answer choicesMPFCdkcyclin

Which of the following membrane receptors act as dimers that result in protein phosphorylation reactions following ligand binding?Group of answer choicesAdhesion receptorsReceptor tyrosine kinasesG protein-coupled receptorsLigand gated ion channels