Answer:
Yes, it is possible to get shingles more than once.
Explanation:
Women are more likely to have shingles a second time more than men.
The longer the post herpetic neuralgia ( pain after shingles) the higher the chances of recurrence.
If shingles comes back, it may occur on another side of the body. This is because, once you have had chicken pox, the virus remains in the nerve. When the virus then reactivates the infected nerves become inflamed and when the virus reaches the skin, the rash appears.
Answer:
use googl e so much better okay
Explanation:
Mutations also occur because of incorrect copying of information in Mitosis.
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.
