The differentiation among blood
groups results from the presence of a certain type of protein on the surface of
red blood cells in the body. This protein or antigen has two types which are
named Antigen A and Antigen B. A person whose blood group is A has the antigen
A on the surface his red blood cells, while a person whose blood group is B has
the antigen B on the surface of his red blood cells. However, a person who has
neither A nor B antigen has the blood group O, while a person who has both A and
B antigen has the blood group AB.
10 chromosomes. After telophase and cytokinesis, the new daughter cells will each have 10 chromosomes, which is identical to the parental cell. Human cells have 23 pairs of chromosomes.
