Which is common feature shared between the GG-subunit of a G-protein complex and the c-ras protein? Select one: A. intrinsic GTPase activity
B. membrane associated protein
C. signal transduction
D. All of these
E. None of these

C. signal transduction

Explanation:

The GTPase activity is the ability to hydrolyze guanine triphosphate (GTP) to guanine diphosphate (GDP) and thus release chemical energy. The G-proteins are heterotrimeric protein complexes composed by alpha, beta and gamma (GG) subunits that form a complex located within the cell which is activated by protein-coupled receptors (GPCRs) localized in the cell membrane. The alpha subunit of heterotrimeric G proteins shares homology with the middle region of the c-ras protein, which is responsible for its GTPase activity. The c-ras protein contains a GTP binding motif that functions in mediating signal transduction pathways, which is attached to the cell membrane. When c-ras is inactive, it is bound to GDP, while c-ras is active when bound to GTP.

there are mainly three domains in biological classification namely; archaea, bacteria, and eukarya.

archaea includes all the prokaryotic cells which are characterized by their lipid membranes. they have branched hydrocarbon which is attached to glycerol through an ether linkage.

bacteria includes all the prokaryotic cells, the cell membrane of which are made up of the unbranched fatty acid chain. in addition, they are attached to glycerol through an ester bond.

eukarya includes all the eukaryotic cells, that is, the cells contain a nucleus and other membrane-bound cell organelles.

they can be autotrophic as well as heterotrophic, unicellular as well as multicellular

they include kingdoms like protista, plantae, animalia, fungi et cetera.

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explanation:

"a.) well–developed vascular system."