Question:

In the ABO system of blood groups, if both antigens are present but no antibody, the blood group of the individual would be

Updated On: May 1, 2024
  • B
  • O
  • AB
  • A.
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The Correct Option is C

Solution and Explanation

Human blood groups are special characteristics of blood in human and related primates due to presence of genetically controlled antigens and antibodies. ABO blood groups were the first to be discovered and are the most important in assuring safe blood transfusion. This system reflect the presence or absence of A and B agglutinogens (antigen) which are carried on the surface of plasma membrane of red blood cells. The ABO blood groups are determined by the gene I having three alleles - IA,IB,I0. In human being, there are present two antigens A and B produced by IA and IB alleles respectively. These antigens are always present on the surface of RBCs. Also are present two antibodies in the plasma-anti A and anti B. Blood group AB has both antigens A and B but no antibodies.
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Concepts Used:

Body Fluids and Circulation

Liquid substances in the animal or human body are known as body fluids. The human body consists of about 60-67% body fluids. The chief components of the human body fluids are blood and lymph. Blood comprises a matrix called plasma with blood corpuscles floating in it. The blood cells are white blood cells, red blood cells, and platelets. Lymph consists of lymph cells.

Read More: Body Fluids and Circulation

Types of Body Fluids:

The different types of body fluids:

Blood

The main components of blood involve;

  1. Plasma
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  3. White Blood Cells
  4. Platelets

Lymph

A colorless fluid present in the interstitial tissues is lymph. It circulates all over the lymphatic system. It can be described as blood without the RBCs. The exchange of hormones, nutrients, and gases occurs via this fluid. It contains lymphocytes that play a major function in the immune responses of the body.

The movement of blood across the vessels of the body that carries nutrients and gases along with it and removes waste from the different parts of the body is circulation.

Types of Circulatory Systems:

There are two types of circulatory systems:

  • Open Circulatory system
  • Closed circulatory system