Answer:
population that is unchanging
Explanation:
This works because the white pain acts as a barrier, therefor the sunlight a bounces off the glass instead of just going through.
Answer:
The answer is letter A. automatic
Explanation:
When Surita sees a man walking around the shopping mall in December and notices that he is very robust, has a long white beard, and wears thin rimmed eyeglasses, she immediately assumes that he is a Santa Claus actor taking a break; she is engaging in a(n) __AUTOMATIC_______ process.
Answer:
a mutation that blocks the GTPase activity of Ras
Explanation:
A G protein in inactive state is GDP bound but as soon as a guanine exchange factor (GEF) exchanges it with GTP it gets activated which means that in GTP bound state it is active. G - protein has endogenous GTPase activity. Upon interaction of GAP, the GTPase activity of this protein is exhibited. When GAP is present, hydrolysis of GTP into GDP occurs which leads to inactivation of G protein. A mutation which will block GTPase activity of Ras will therefore result in constitutive active signaling even in the absence of ligand binding to it's receptor. In such scenario, GTP will not be hydrolyzed into GDP so signaling will be up-regulated.
