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H antigens correspond to the antigenic type of the bacterial flagella
O antigens correspond to the antigenic type of the Lipopolysaccharide layer on the outer membrane of gram negative bacteria
bacteria all have different antigenic types on their surface which react to different types of antibodies and are classified using this method. For example the pathogenic E. coli O157:H7 has the designation 157 for its O antigen meaning it will not react with antibodies with a different serotype.
What else can I help you with?
What is difference between S Typhi O and S Typhi H?
There is a great difference between S Typhi O and H. The S Typhi O is somatic, and H is flagella.
Can a person with type O blood safely donate blood to a person having type A blood why and why not?
Yes, a person with type O blood can safely donate blood to a person with type A blood. This is because type O blood is considered the universal donor, as it lacks A and B antigens on the surface of its red blood cells, reducing the risk of an immune reaction in the recipient. Type A blood has A antigens, but it can accept type O blood without any complications since it does not have anti-O antibodies.
Is hoh an element?
No, it is a water molecule H - O - H. It is made of two elements, oxygen (O) and hydrogen (H). It is not linear, but has a bond angle of 104.5 degrees.
Is O blood type universal?
Type O blood is considered to be the universal blood type. This is because it does not have either A or B antigens on the red cells. It does however contain the antibodies for each one in the plasma.
What is a example of molecule?
H(subscript 2)O
Does O blood have any antigens present?
No, O blood does not have any antigens present.
What blood type has no antigens?
Previous answer: 0 blood type has no antigens.My improved answer: the Bombay phenotype has no antigens.O blood group has H antigens (but does not have A or B antigens), whereas in the Bombay phenotype blood group, even the H antigens are absent.Glenn LowNUS Life Sciences Studentsimmune system
What molecule found on the surface of a cell is responsible for ABO blood type?
The ABO blood type is determined by specific glycoprotein molecules called antigens present on the surface of red blood cells. These antigens include A and B antigens, which are variations of the H antigen modified by specific enzymes. An individual's blood type (A, B, AB, or O) is based on the presence or absence of these antigens. For example, type A blood has A antigens, type B has B antigens, AB has both, and type O has neither.
Why is type O considered the "universal donor"?
A type A blood sample contains A antigens which will conflict with any sample that does not have A antigens (B, O). O contains no antigens and therefore is compatible with all blood types.
Does anybody know what are the 4 blood types ?
Te four basic blood types are O, A, B and AB. They are named for the types of antigens they carry. O has no antigens, A has A antigens, B has B antigens and AB carries both.
What are the A B AB and O blood groups distinguished by?
The ABO blood group system classifies blood based on the presence or absence of certain antigens on the surface of red blood cells. Type A blood has A antigens, type B blood has B antigens, type AB blood has both A and B antigens, and type O blood has neither A nor B antigens.
Which antigens are present in your plasma if you have type O blood?
Your blood type is determined by antibodies (both/either A and B), and Antigens present (both/either A and B) in your Red Blood Cells. O blood types have both A and B antibodies, and neither A or B antigens. If you are O+ it means you can give blood to anyone. If you are O- it means you can recieve any blood type.
What are examples of four different blood types?
The 4 blood types are:A - type A blood has antigen A and antibody anti-BB - type B blood has antigen B and antibody anti-AAB - blood type AB has both antigens A and B and has no antibodiesO - Type O blood has no antigens but has both antibodies anti-A and anti-B
Which ABO phenotype selection contains the most H antigen and the least H antigen respectively on the red cell surface?
The ABO phenotype that contains the most H antigen on the red cell surface is the O phenotype, as individuals with this phenotype have the highest concentration of H antigen and lack A and B antigens. Conversely, the AB phenotype contains the least H antigen because it has both A and B antigens, which are produced by the modification of H antigen, resulting in a lower amount of unmodified H antigen on the surface.
Can o blood be transfused into h-h blood?
No, not safely. O blood has H anitgens but HH blood does not. HH blood type can only receive blood from other HH blood types. HH blood is not stored in blood banks. Also HH blood when tested to see if A B or O, tests as O, unless the lab or technician test further to check for H anitgens, something not routinely done.
What do the letters B and O stand for in the B?
In the context of blood types, the letters B and O refer to specific antigens present on the surface of red blood cells. Blood type B has the B antigen, while blood type O lacks both A and B antigens. Therefore, type B blood has B antigens and type O blood is considered a universal donor due to the absence of these antigens.
What types of blood can people who are O positive accept?
People with O blood can only accept O blood. this is because type O blood does not have any antigens. Types A, B, and AB blood have A or B antigens, or both, respectively. If a person receives blood with antigens their blood does not contain it will cause their blood to clot and they will die.
