The G? subunit is responsible for activation of ________.

Fill in the blank(s) with the appropriate word(s).


adenylyl cyclase

Biology & Microbiology

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In many cells, the adhesion to the extracellular matrix through integrins causes the activation of kinases in the cytoplasm. This suggests that:

A. integrins promote the activation of signaltransduction pathways. B. integrins are kinases. C. extracellular matrix proteins are receptors and integrins are ligands.

Biology & Microbiology

The body symmetry of adult echinoderms could best be described as ________.

A. fivefold symmetrical B. fourfold symmetrical C. bilateral D. asymmetrical

Biology & Microbiology

Which of the following is a list of taxa, that along with their common ancestors, constitutes a monophyletic clade?

A. Prokaryotes B. Eukaryotes C. Protists D. All of the above E. None of the above

Biology & Microbiology

Hydra, anemones, and jellyfish are in the phylum

A) Flagellates. B) Cnidaria. C) Platyhelminthes. D) Porifera. E) Protista.

Biology & Microbiology