Table of Contents
MCQs OF BIOLOGY CLASS 12
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1. A certain patient is suspected to be suffering from Acquired Immune Deficiency Syndrome. Which diagnostic technique will you recommend for its detection?
a. WIDAL
b. ELISA
c. MRI
d. Ultra sound
2. A metastatic cancerous tissue is termed ‘sarcoma’ if the disorder is in:
a. Fibroblasts
b. Epithelial cells
c. Immune system
d. Circulatory system
3. A health disorder that results from the deficiency of thyroxine in adults and characterized by (i) a low metabolic rate, (ii) increase in body weight and (iii) tendency to retain water in tissues is :
a. Cretinism
b. Hypothyroidism
c. Simple goitre
d. Myxoedema
4. Carcinoma refers to :
a. Malignant tumours of the skin or mucous membrane
b. Benign tumours of the connective tissue
c. Malignant tumours of the colon
d. Malignant tumours of the connective tissue
5. Common cold is not cured by antibiotics because it is :
a. Caused by a Gram-negative bacterium
b. Not an infectious disease
c. Caused by a virus
d. Caused by a Gram-positive bacterium
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6. At which stage of HIV infection does one usually show symptoms of AIDS?
a. Within 15 days of sexual contact with an infected person
b. When the infecting retrovirus enters host cells
c. When viral DNA is produced by reverse transcriptase
d. When HIV replicates rapidly in helper T-lymphocytes and damages large number of these
7. Cancer cells are damaged by radiations while others are not because cancer cells are :
a. Undergoing rapid divisions
b. Different in nature
c. Starved
d. None of the above
8. Alzheimer disease in humans is associated with the deficiency of :
a. Gamma aminobutyric acid (GABA)
b. Dopamine
c. Glutamic acid
d. Acetylcholine
9. Suspension of attenuated pathogen that stimulates antibody formation is :
a. Antitoxin
b. Vaccine
c. Antibiotic
d. Serum
10. Which of the following disease is caused by virus and transmitted by mosquito :
a. Plague
b. Typhus
c. Yellow fever
d. Filariasis
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11. Use of anti-histamines and steroids give a quick relief from :
a. Headache
b. Allergy
c. Nausea
d. Cough
12. Which of the following diseases is due to an allergic reaction?
a. Enteric fever
b. Hay fever
c. Skin cancer
d. Goitre
13. Consider the following four measures (a – d) that could be taken to successfully grow chickpea in an area where bacterial blight disease is common:
a) Spray with Bordeaux mixture
b) Control of the insect vector of the disease pathogen
c) Use of only disease-free seeds
d) Use of varieties resistant to the disease
Which two of the above measures can control the disease?
a. A and D
b. B and C
c. A and B
d. C and D
14. A tumor enclosed within a capsule is termed :
a. Benign
b. Metastasis
c. Malignant
d. Basophils
15. Which of the following is a pair of viral diseases?
a. Typhoid, Tuberculosis
b. Ringworm, AIDS
c. Common Cold, AIDS
d. Dysentery, Common Cold
ANSWERS:
| 1. b 2. a 3. d 4. a 5. c 6. d 7. b 8. b | 9.b 10.c 11.b 12. b 13. d 14. a 15.c |
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ALSO VISIT: +2 BIOLOGY
| Also Study | Also study | Also Study | Attempt the Quiz | Attempt the Quiz | Attempt the Quiz |
| MCQ ON ORGANISM AND ENVIRONMENT CLASS 12 | |||||
| Anatomy of flowering plants | |||||
| Mineral Nutrition in plants | |||||
| REPRODUCTIVE HEALTH MCQs | |||||
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