Answer:
The correct option is B
Explanation:
The alpha and beta-gamma subunits both can bind to target proteins. Once a G protein becomes active, its alpha subunit and beta-gamma dimer both have the ability to pass on messages in the cell via connecting or binding with other membrane proteins that are involved in the transduction of signals. In this light, B is the best option.
The 3rd one: Technology advancements
Answer:
B. knowing the age of a grandmother because she was a kid during the Great Depression
A. the volcanic eruptions of Mt. Vesuvius
