The activation of receptor tyrosine kinases is characterized by Naim 01:45 AP Biology Chapter 11 The activation of receptor tyrosine kinases is characterized by A) dimerization and phosphorylation. B) IP3 binding. C) a phosphorylation cascade. D) GTP hydrolysis. E) channel protein shape change. Answer: A Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+