Multiple choice

On the basis of _______ present on the surface of red blood cells, four blood groups are formed.

  1. antibodies

  2. antigens

  3. macrophages

  4. WBCs

  5. neutrophils

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The antigens expressed on the surface of red blood cell determine an individual's blood group. Blood group antigens are either sugars or proteins, and they are attached to various components in the red blood cell membrane.