Question :
If Rh factor is present in blood???
Answer :
The Rh factor is a protein that can be found on the surface of red blood cells. If your blood cells have this protein, you are Rh positive. If your blood cells do not have this protein, you are Rh negative. During pregnancy, problems can occur if you are Rh negative and your fetus is Rh positive.
From experiments that scientists did with bacteria and viruses
That would be genetic engineering. This study involves the use of DNA and genes.
Tick inject a toxin into the body to keep the blood from coagulating. Some people are really allergic to the toxin, so this causes an itch.
C. The associates proteins are histones