Question

What are the following?

(a) Rh factor

(b) Universal donor

(c) Diapedesis

Answer 1

(a)Rh factor – It is an inherited antigen often found on the blood cells. Some individuals have these antigens and are thus Rh positive (Rh+) while others who do not have this antigen are Rh negative (Rh-).

(b)Universal donor – The person with blood group O is a universal donor as this type of blood can be given to persons with any blood group i.e. O, A, B, AB.

(c)Diapedesis – It is the squeezing of leucocytes through the wall of capillaries into the tissues.