What type of immunity is provided by the convalescent plasma therapy in Covid-19 patients that is in contemporary news?
1. | Naturally acquired active adaptive immunity |
2. | Artificially acquired active adaptive immunity |
3. | Naturally acquired passive adaptive immunity |
4. | Artificially acquired passive adaptive immunity |
A highly effective recombinant vaccine is available for the prevention of:
1. | Poliomyelitis | 2. | Covid-19 |
3. | HIV infection | 4. | Hepatitis B |
An antibody molecule has an antigen-binding site located in the:
1. | hinge region |
2. | disulfide bonds |
3. | constant region of the L chains |
4. | variable regions of the H and L chains |
Antiserum provides:
1. | natural active acquired immunity |
2. | artificial active acquired immunity |
3. | natural passive acquired immunity |
4. | artificial passive acquired immunity |
The importance of the colostrum for the neonate [newborn] is due to the fact that:
1. | The colostrums has large amounts of antibodies that can cross the placenta. |
2. | It can provide protection to the neonate against the pathogens to which the mother is immune. |
3. | The high amounts of brown fat in the colostrum enable neonate to achieve adequate thermoregulation. |
4. | The neonate does not have a well-developed adaptive [acquired] immunity. |
An immune process where particles such as bacteria are targeted for destruction by an immune cell known as a phagocyte is called as:
1. | chemotaxis | 2. | opsonization |
3. | cloning | 4. | anergy |
CD4 and CD8 proteins can be best described as:
1. | attachment proteins on the surfaces of helper-T and cytotoxic T-cells |
2. | different protein chains seen in IgG and IgM antibodies |
3. | proteins on microbes that identify them as foreign |
4. | the proteins that antigen-presenting cells display along with foreign antigens |
An infant can get passive immunity from:
1. | infection | 2. | colostrum |
3. | anti-Rh Ig | 4. | vaccination with live vaccines |
Graft rejection is due to:
1. Innate immune response
2. Humoral immune response
3. Cell-mediated immune response
4. Auto-immune response