Which one of the following statements is correct?

1.	Patients, who have undergone surgery are given cannabinoids to relieve pain
2.	Benign tumours show the property of metastasis
3.	Heroin accelerates body functions
4.	Malignant tumours may exhibit metastasis

The letter T, in T- lymphocyte refers to:

1. thyroid

2. thalamus

3. tonsil

4. thymus

HIV that causes AIDS first starts destroying:

1. B-lymphocytes

2. leucocytes

3. thrombocytes

4. helper T-lymphocytes

A person suffering from a disease caused by Plasmodium, experiences chill and fever at the time when?

1. The sporozites released from RBCs are being rapidly killed and broken down inside spleen

2. The trophozites reach maximum growth and give out certain toxins

3. The parasite after its rapid multiplication inside RBCs ruptures them, releasing the stage to enter fresh RBCs

4. The microgametocytes and megagametocytes are being destroyed by the WBCs

A person who met with a road accident is likely to develop tetanus, can be immunised by administering

1. Weakened germs

2. Dead germs

3. Preformed antibodies

4. Wide spectrum antibiotics

MALT constitutes about ______ percent of the lymphoid tissue in human body 

1. 50%

2. 20%

3. 70 %

4. 10%

Acid in stomach, saliva in the mouth, tears from eyes, all prevent microbial growth belong to which of the following barriers?

1. Physical barrier

2. Physiological barrier

3. Cellular barrier

4. Cytokine barrier

Select the correct statement from the ones given below:

At which stage of HIV infection does one usually shows symptoms of AIDS?

A certain patient, X, is suspected to be suffering from acquired immune deficiency syndrome. Which diagnostic technique will you recommend for its detection?