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Detailed Overview: Blood Groups Video Lecture - NEET
FAQs on Detailed Overview: Blood Groups Video Lecture - NEET
| 1. What are blood groups and how are they determined? |  |
Ans. Blood groups are classifications of blood based on the presence or absence of certain molecules on the surface of red blood cells. The most well-known blood group systems are ABO and Rh. ABO blood groups are determined by the presence of antigens A and B, while Rh blood groups are determined by the presence or absence of the Rh factor. The blood group of an individual is determined by inherited genes from their parents.
| 2. What are the different types of blood groups in the ABO system? | |
Ans. The ABO blood group system consists of four main types: A, B, AB, and O. Type A individuals have antigen A on their red blood cells and antibodies against antigen B in their plasma. Type B individuals have antigen B on their red blood cells and antibodies against antigen A in their plasma. Type AB individuals have both antigen A and B on their red blood cells but no antibodies against either antigen in their plasma. Type O individuals have neither antigen A nor B on their red blood cells but have antibodies against both antigens in their plasma.
| 3. How is blood group compatibility important in blood transfusions? | |
Ans. Blood group compatibility is crucial in blood transfusions to ensure the safety and effectiveness of the procedure. If incompatible blood types are mixed during a transfusion, the recipient's immune system may recognize the foreign blood cells as "invaders" and attack them. This immune response can lead to a severe and potentially life-threatening reaction. Therefore, it is necessary to match the blood group of the donor with the blood group of the recipient before a transfusion to avoid any complications.
| 4. Can blood group affect a person's health or susceptibility to diseases? | |
Ans. Yes, blood group can potentially influence a person's health and susceptibility to certain diseases. Some studies suggest that certain blood groups may be associated with an increased or decreased risk of developing certain conditions. For example, individuals with blood group A may have a higher risk of developing gastric cancer, while those with blood group O may have a lower risk. However, it is essential to note that blood group alone does not determine a person's overall health or disease susceptibility, as various other factors also come into play.
| 5. Is it possible for a person's blood group to change over time? | |
Ans. No, a person's blood group does not change over time. The ABO and Rh blood group antigens are determined by inherited genes, and once these genes are established during early development, they remain the same throughout a person's life. However, it is important to note that new techniques have been developed that allow for certain modifications in blood group characteristics for medical purposes, such as converting type A or B blood to type O in emergencies. These techniques are not commonly used and are only performed under specific circumstances.
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