Antigenic determinant sites bind to which portion of an antibody molecule?
(1) Light chain
(2) Heavy chain
(3) Intermediate chains
(4) Plasma cells
Anti venom against snake poison contains:
Formation of antibodies within our body is called:
The production of antibodies by plasma cells in response to an antigen is called active immunity and describes the host's active response of the immune system to an infection or to a vaccination.
Antibodies are produced by:
Japanese encephalitis is transmitted by:
The sporozoites that cause infection, when a female Anopheles mosquito bites a person, are stored in
► Sporozoites enter the female Anopheles mosquito when they bite an infected person where these sporozoite fertilise and multiply in the stomach wall of the female Anopheles and stored in the salivary gland of mosquito till it is again transferred to the human body by a mosquito bite.
► After entering the human body the sporozoites reach the liver cells, where they multiply. This is followed by their attack on red blood cells resulting in their rupture. The ruptured RBCs release a toxin called haemozoin, which is responsible for high recurring fever, chills and shivering.
► Mosquito Anatomy:
The organisms which cause diseases in plants and animals are called:
Human Immunodeficiency Virus causes aids by attacking a type of white blood cell called
► HIV progressively destroys certain types of white blood cells called CD4+ lymphocytes.
► Lymphocytes help defend the body against foreign cells, infectious organisms, and cancer. Thus, when HIV destroys CD4+ lymphocytes, people become susceptible to attack by many other infectious organisms.
► HIV Infection:
Which of the following vaccines are injected at the age of 1&½ , 2&½ , 3& ½ Months?
The baby is given the following vaccines from the first month to the third month:
Which of the following is the unit of immune system?
► Lymphocytes are one of several different types of white blood cells.
► Lymphocytes are of two types B cells and T cells.
Hence lymphocytes is a unit of the immune system.
Both sickle cell anaemia and Huntington’s chorea are:
Immuno-deficiency syndrome could develop due to:
The function of IgE is:
The function of IgE antibody as mediators in allergic reactions of Type I is explained by their ability to interact both with antigen and with receptor molecules on the membrane of blood basophils and tissue mast cells.
The chemical test that is used for diagnosis of typhoid is:
1. ESR is done to check out the concentration of Erythrocytes in blood.
2. PCR is done to amplify the amount of DNA molecules.
3. Widal test is a serological test for typhoid or enteric fever.
4. ELISA is done in AIDS.
The disease chikungunya is transmitted by:
► Mosquitoes become infected when they feed on a person already infected with the virus.
► Infected Mosquitoes can then spread the virus to other people through bites.
► Chikungunya virus is most often spread to people by Aedes aegypti and Aedes albopictus mosquitoes. These are the same mosquitoes that transmit dengue virus.