Question

Explain blood groups​

Answer 1

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Blood groups...

A blood type (also called a blood group) is defined as the classification of blood based on the presence or absence of inherited antigenic substances on the surface of red blood cells (RBCs). A series of related blood types constitutes a blood group system, such as the Rh or ABO system...

Explanation:

More information...

There are 4 main blood groups (types of blood) –

➟A,

➟ B,

➟AB and

➟O.

✞Your blood group is determined by the genes you inherit from your parents.

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Answer 2

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Blood Group :-

A blood type (also known as a blood group) is a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells (RBCs).

• These antigens may be proteins, carbohydrates, glycoproteins, or glycolipids, depending on the blood group system.

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Additional Information

Types of blood group :-

There are 4 main blood groups (types of blood) – A, B, AB and O. These blood group is determined by the genes you inherit from your parents.

Antibodies and antigens:-

• Blood is made up of red blood cells, white blood cells and platelets in a liquid called plasma. Your blood group is identified by antibodies and antigens in the blood.

• Antibodies are proteins found in plasma. They're part of your body's natural defences. They recognise foreign substances, such as germs, and alert your immune system, which destroys them.

• Antigens are protein molecules found on the surface of red blood cells.

The ABO system

There are 4 main blood groups defined by the ABO system:

• Blood group A – has A antigens on the red blood cells with anti-B antibodies in the plasma

• Blood group B – has B antigens with anti-A antibodies in the plasma

• Blood group O – has no antigens, but both anti-A and anti-B antibodies in the plasma

• Blood group AB – has both A and B antigens, but no antibodies

The Rh type blood factor

A person’s blood type used to be called their ‘Rhesus type’ but now we say ‘Rh type’. Your Rh type is determined by a different pair of genes to the ones that determine your ABO blood type (again, one inherited from each parent).

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Blood transfusion

A blood transfusion is the transfer of blood or blood components from one person to another. Transfusions are of red blood cells or other components such as plasma or platelets.

• O negative red blood cells can be given to anybody if necessary, but it is always preferable to match the exact blood group. Australia has one of the safest blood supplies in the world, and donating blood here is a very safe process.

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