Question

Person with which one of the following blood group is considered as Universal Donor?
1. Blood Group B
2. Blood Group O
3. Blood Group AB
4. Blood Group A

Answer 1

Correct Answer - Option 2 : Blood Group O

The correct answer is Blood Group O.

• Blood Group are discovered by Carl Landsteiner.
• He discovered the ABO blood group system in the year 1900.
• There are four types of blood groups in the ABO blood group system: A, B, AB, and O.
• Antigens and antibodies on red blood cells and in plasma are used to divide people into blood groups.
• A person with blood group O is considered a Universal Donor.
  • 'O' blood can be donated to people of any blood type.
• A person with blood group AB is considered a Universal recipient.
  • The AB' group can accept blood from people who have AB as well as other blood groups.

• Antigen A and antibody B are found in Group A.
• Antigen B and antibody A are found in Group B.
• A and B antigens are present in Group AB, but no antibodies are present (neither A nor B).
• Antigens A and B are not present in Group O, however, both antibodies A and B are present.