AIDS is caused by HIV. Among the following, which one is not a mode of transmission of HIV?
1. Transfusion of contaminated blood
2. Sharing the infected needles
3. Shaking hands with infected persons
4. Sexual contact with infected persons
‘Smack’ is a drug obtained from the
1. latex of Papaver somniferum
2. leaves of Cannabis sativa
3. flowers of Dhatura
4. fruits of Erythroxyl coca
The substance produced by a cell in viral infection that can protect other cells from further infection is
1. serotonin
2. colostrum
3. interferon
4. histamine
Transplantation of tissues/organs to save certain patients often fails due to rejection of such tissues/organs by the patient. Which type of immune response is responsible for such rejections?
1. Auto-immune response
2. Humoral immune response
3. Physiological immune response
4. Cell-mediated immune response
Antibodies present in colostrum, which protect the new born from certain diseases, is of
1. Ig G type
2. Ig A type
3. Ig D type
4. Ig E type
Tobacco consumption is known to stimulate secretion of adrenaline and noradrenaline. The component causing this could be:
1. Nicotine
2. Tannic acid
3. Curamin
4. Catechin
Antivenom against snake poison contains
1. antigens
2. antigen-antibody complexes
3. antibodies
4. enzymes
Which of the following is not a lymphoid tissue?
1. Spleen
2. Tonsils
3. Pancreas
4. Thymus
Which of the following glands is large-sized at birth but reduces in size with ageing?
1. Pineal
2. Pituitary
3. Thymus
4. Thyroid
Haemozoin is a:
1. precursor of haemoglobin
2. toxin released from Streptococcus infected cells
3. toxin released from Plasmodium infected cells
4. toxin released from Haemophilus infected cells