The genes that survive and flourish in a species are the strong ones. Strong genes evolve into the next generation, while weaker ones die.
Answer:
The correct answer is - option B.
Explanation:
Prior to third trimester mother feels heavier breathing and experience difficulty in breathing normally that is due to the head of the baby present under the one of the rib and pressure on the diaphragm.
This get less due to the shift of the baby as the baby stat to move further into pelvis. Moving of the head of the bay towards down into pelvis helps in making breathing easier.
Thus, the correct answer is - option B.
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.
<span>The height, length, and period of a wave comprise the "Speed of the wave"
Hope this helps!</span>
