Down syndrome is caused by all except___________?

Related Mcqs:

1. Staphylococcal toxic shock syndrome (SSS syndrome) is due to______________?

   A. Enterotoxin A
   B. Enterotoxin B
   C. Enterotoxin D
   D. Enterotoxin F

2. Out of syphilitic glossitis, plummer vinson syndrome Mikulicz’s syndrome and hepatitis A; which of these predispose to squamous cell arcinoma ______________?

   A. Syphilitic glossitis and plummer vinson syndrome
   B. Syphilitic glossitis and Mikulicz’s syndrome
   C. Plummer vinson disease and hepatitis A
   D. Hepatitis A and Mikulicz’s Syndrome

3. A patient with amenorrhea, short stature, less public hair can be in all of the following except___________?

   A. 47 XXY
   B. 46 XY
   C. 45 X
   D. 46 XXY

4. The characteristic cells of chronic inflammation are all except___________?

   A. Plasma cells
   B. Macrophages
   C. Lymphocytes
   D. PMN’s

5. Brittle bone syndrome is caused by______________?

   A. Improper synthesis of procollagen
   B. Polymerisation of collagen
   C. Increase osteoclastic activity
   D. Increase fibroblastic activity

6. Following are local hormones except___________?

   A. Insulin
   B. Heparin
   C. Bradykinin
   D. Acetylcholine

7. In vitamin A deficiency, patient complains of all of the following except___________?

   A. Night blindness
   B. Xerophthalmia
   C. Keratosis
   D. Phophoric calciuria

8. All are genetic amino acid deficiency disease except___________?

   A. Phenyl ketonuria
   B. Alkaptonuria
   C. Homocystinuria
   D. 6alactosemia

9. All the following increases drug metabolism by activating cytochrome enzyme, EXCEPT___________?

   A. Tetracycline
   B. Cimetidine
   C. Rifampicin
   D. Phenobarbitone

10. Hypodontia is mainly found in all except___________?

    A. Papillion levefre syndrome
    B. Osteopetrosis
    C. Cleidocranialdysostosis
    D. Ectodermal dysplasia