NEET TEST SERIES 163 BIOLOGY

1. Withdrawal of which hormone is the cause of menstruation?

(a) Estrogen
(b) Progesterone
(c) LH
(d) FSH

2. Which of the following statement is incorrect?
(i) Rheumatoid arthritis is an autoimmune disease.
(ii) The use of drugs like antihistamine, adrenaline, and steroids quickly reduces the symptoms of bacteria) infection.
(iii) Several genes (called cellular oncogenes) have been identified in normal cells which when activated under certain conditions, could transformation of the cells.
(iv) The vaccine also generates memory – B and T cells that recognize the pathogen quickly on subsequent exposure and overwhelm the invaders with a massive production of antibodies.
(v) HIV enters into helper T-lymphocytes.

(a) (i) and (v)
(b) (ii) any
(c) (i), (ii) and (iii)
(d) All of these

3.   Assertion : Interspecific competition is the only potent force in organic evolution.
       Reason: Unexceptionally two closely related species competing for the same resources cannot co-exist indefinitely.

a) Both assertion and reason are true and reason is the correct explanation of assertion.
b) Both assertion and reason are true but reason is not the correct explanation of assertion.
c) Assertion is true but reason is false.
d) Both assertion and reason are false.Deselect Answer

4. Select the correct matching of a hormone,its function.
Deselect Answer

5. Which of the given statements (i-iv) are correct about bioreactor?
(i) Bioreactor provides the optimal conditions for obtaining the desired product.
(ii) Raw materials are biological which are converted into specific products.
(iii) Slirred-tank reactor is horizontal in shape.
(iv) Large volume of culture cannot be processed.

(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) All of these

6. Select the correct statement with respect to diseases and immunisation?

(a) If due to some reason B-and T-lymphocytes are damaged, the body will not produce antibodies against a pathogen
(b) Injection of dead / inactivated pathogens causes passive immunity
(c) Certain protozoans have been used to mass produce hepatitis B vaccine.
(d) Injection of snake antivenom against snake bite is an example of active immunisation

7.   Assertion: Arthritis or inflammation of a joint makes the joint painful.
       Reason: Some toxic substances are deposited at the joint. In the light of the above statements, choose the correct answer from the options given below:

(a) Both (A) and (R) are correct but (R) is not the correct explanation of (A)
(b) (A) is correct but (R) is not correct
(c) (A) is not correct but (R) is correct
(d) Both (A) and (R) are correct and ® is the correct explanation of (A)

8. Match the following and choose the correct  answer   from the options given below


a) A-(iii), B-(iv), C-(i), D-(ii)
b) A-(i), B(ii), C-(iv), D-(iii)
c) A-(ii), B-(iii), C-(i), D-(iv)
d) A-(iv), B-(i), C-(iii), D-(ii)Deselect Answer

9. Select the incorrect statement with respect to acquired immunity.

(a) Anamnestic response is elicited on subsequent encounters with the same pathogen.
(b) Anamnestic response is due to memory of first encounter.
(c) Acquired immunity is non-specific type of defence present at the time of birth.
(d) Primary response is produced when our body encounters a pathogen for the first time.

10. Read the following (i to v) statements and select the one option that contains both correct statements
(i) Z-line is present in the centre of the light band .
(ii) Thin filaments are firmly attached to the M-line
(iii) The central part of thick filaments, not overlapped by thin filaments is called Z-band
(iv) Light band contains only thin filaments
(v) Actin filaments are thicker as compared to the myosin filaments.

(a) (i) and (iv)
(b) (ii), (v) and (iii)
(c) (i) and (iii) 
(d) (ii)and(iv)