1. Teratogens are defined as agents which induce:
- A. Mitosis
- B. Carcinogenesis
- C. Birth defects
- D. Fallot’s tetralogy
2. For chromosomal study, it is best to use the following nucleated cells:
- A. Polymorphs
- B. Lymphocytes
- C. Epithelial cells
- D. Fibroblasts
3. For chromosomal study, the dividing cells are arrested by colchicine in the following phase of cell cycle:
- A. Prophase
- B. Metaphase
- C. Anaphase
- D. Telophase
4. Denver classification divides chromosomes based on their length into the following groups:
- A. A to C (3 groups)
- B. A to E (5 groups)
- C. A to G (7 groups)
- D. A to I (9 groups)
5. Polyploidy is generally not a feature of dividing cells of the following type:
- A. Megakaryocytes
- B. Hepatocytes
- C. Tubular cells
- D. Conceptus of abortions
6. Numeric abnormality in chromosome occurs in the following conditions except:
- A. Ph chromosome in CML
- B. Turner’s syndrome
- C. Klinefelter’s syndrome
- D. Down’s syndrome
7. Mutations affecting germ cells produce:
- A. Cancers
- B. Inherited diseases
- C. Congenital malformations
- D. Aneuploidy
8. In lysosomal storage diseases, the following cells are particularly involved:
- A. Hepatocytes
- B. Skeletal muscle
- C. Macrophages
- D. White pulp of spleen
9. Out of the following glycogenosis, the following is example of lysosomal storage disease:
- A. von Gierke’s disease
- B. Pompe’s disease
- C. Forbe’s disease
- D. Anderson’s disease
10. Blastomas are childhood tumours seen more often in the age range of:
- A. <4 years
- B. 5-9 years
- C. 10-14 years
- D. 14-16 years
11. All of the following are X-linked recessive disorders except:
A. Haemophilia A and B
B. Chronic granulomatous disease
C. G-6 PD deficiency
D. Sickle cell anaemia
12. Gaucher cells are positive for all except:
- A. PAS
- B. Mucicarmine
- C. Oil red O
- D. Prussian blue
Answers Key
1) = C, 2) = B, 3) = B, 4) = C, 5) = C, 6) = A, 7) = B, 8) = C, 9) = B, 10) = A, 11) = D, 12) = B