The answers are
1. nitrogenous
2. acid-base
3. fluid
They form a complex called chromatin
Sickle cell disease is a hereditary disease seen most often among people of African ancestry. Caused by mutations in one of the genes that encode the hemoglobin protein, the disease is inherited as an autosomal recessive trait.
The North Atlantic drift is the moderator of the air temperature over northwestern Europe. It is generally warm and rotates clockwise.