1.Which of the following statements regarding the disease typhoid is/are correct?

(ⅰ) Salmonella typhi, a pathogenic bacterium which enter human intestine through contaminated food and water and migrate to other organs through blood.

(ii) Sustained high fever (39°C to 40°C), weakness, stomach pain, constipation, headache and loss of appetite are some common symptoms of typhoid.

(iii) Widal test is used for diagnosis of typhoid fever.

(iv) The patient of this disease is not required to be treated with antibiotics.

2. Which of the following statements is incorrect?

3. A toxic substance, responsible for the chills and high fever recurring every three to four days in malarial fever, is

4. Which of the following is affected by the infection of Wuchereria bancrofti?

5. The pathogen Microsporum responsible for ringworm disease in humans belongs to the same kingdom as that of

6. Gambusia is a fish which is being introduced into the ponds in order to check the vector borne diseases such as

7. Which of the following statements regarding different barriers of innate immunity is not correct?

8. Which of the following is incorrect regarding acquired immunity?

9. Select the correct statements regarding the characteristics of acquired immunity.

(i) Cell-mediated immunity is responsible for acquired immunity.

(ii) It produces a primary response of low intensity.

(iii) Active and passive immunity are types of acquired immunity.

(iv) Polymorphonuclear leucocytes and natural killer cells are involved in acquired immunity.

10. Which one of the following immune system components does not correctly match with its respective role?

11. Which of the following are characteristics of the cancer cells?

I. Uncontrolled cell growth

II. Unregulated cell cycle mechanisms

III. Contact inhibition

IV. Metastasis

V. Confinement to original location

12. Which of these is a member of the group of chemicals whose chemical structure is given below?

13. Which of the following statements is not correct?

Directions: In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as:

14. Assertion: In malaria, a person experiences chills and high fever recurring every three to four days.

Reason: Chills and high fever occur due to the release of haemozoin with rupture of liver cells.

Directions: In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as:

15. Assertion : Mucosa-associated lymphoid tissues (MALT) are specialized immune barrier located on skin.

Reason: MALT constitutes about 50 percent of the lymphoid tissue in human body.

16. Directions: In the following questions, read the given statements and select the correct option as:

Statement I: Many fungi belonging to genera Microsporum, Trichophyton and Epidermophyton are responsible for the disease ringworm.

Statement II: Ringworm infection is generally acquired from soil or by using towels, clothes, comb, etc., of infected individuals.

17. Directions: In the following questions, read the given statements and select the correct option as:

Statement I: Malignant tumors normally remain confined to their original location, do not spread to other body parts and cause less damage.

Statement II: Metastasis is the most feared property of benign tumors.

18. Match column I with column II and select the correct option from the given codes.

19. Match the Column I and Column II and select the correct option:

20. Which are correct?

A. Computed tomography and magnetic resonance imaging detect cancers of internal organs.

B. Chemotherapeutics drugs are used to kill non- cancerous cells.

C. α - interferon activate the cancer patients' immune system and helps in destroying the tumour.

D. Chemotherapeutic drugs are biological response modifiers.

E. In the case of leukaemia blood cell counts are decreased.

Choose the correct answer from the options given below.

21. Identify the correct pair representing the causative agent of typhoid fever and the confirmatory test for typhoid

22. Colostrum, the yellowish fluid, secreted by mother during the initial days of lactation is very essential to impart immunity to the new born infants because it contains

23. The infectious stage of Plasmodium that enters the human body is

24. After maturation, in primary lymphoid organs, the lymphocytes migrate for interaction with antigens to secondary lymphoid organ(s)/tissue(s) like

A. thymus

B. bone marrow

C. spleen

D. lymph nodes

E. Peyer's patches

Choose the correct answer from the options given below:

25. Consider the following four statements (i-iv) regarding kidney transplant and select the two correct ones out of these,

(i) Even if a kidney transplant is proper, the recipient may need to take immuno-suppressants for a long time.

(ii) The cell-mediate immune response is responsible for the graft rejection.

(iii) The B-lymphocytes are responsible for rejection of the graft.

(iv) The acceptance or rejection of a kidney transplant depends on specific interferons.

The two correct statements are