The activation of receptor tyrosine kinases is characterized by
a. dimerization and phosphorylation.
b. dimerization and ip3 binding.
c. a phosphorylation cascade.
d. gtp hydrolysis.

a. dimerization and phosphorylation.

Explanation:

Phosphorylation as well as dimerization are responsible for the activation of the receptor tyrosine kinase.

The dimer forms when two monomers combine together. This process is known as dimerization.

This process activates the monomers and basically add up the ATP molecule to the tyrosine. Proteins are added up to the phosphorylated tyrosine which causes the structural change in the protein. This leads to the cellular response.

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.