Biology MCQs

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Epitaxial growth is used in ICs

  • A. because it produces low parasitic capacitance
  • B. because it yields back to back isolating pn Junction
  • C. to grow single crystal n doped silicon on a single crystal P-type substrate
  • D. to grow Selectivity single crystal P doped silicon of one resistivity on a P type substrate of a different resistivity
  • Correct Answer: Option D

Mucoid swelling can be seen in

  • A. heart valves in rheumatism
  • B. myxedema
  • C. basedow's dermopathy
  • D. all of the listed above
  • Correct Answer: Option D

Which of the following could not be seen in rheumatoid nodules?

  • A. fibrinoid necrosis
  • B. epitheloid cells
  • C. langhans cells
  • D. lymphocytes
  • Correct Answer: Option C

What is the gross appearance of a previous anemic infarction of the brain?

  • A. brain pseudocyst
  • B. fresh liquefactive necrosis
  • C. irregular red-coloured area
  • D. brain cyst
  • Correct Answer: Option A

What type of necrosis develops in the cat-scratch disease?

  • A. gummous
  • B. coagulative
  • C. caseous
  • D. liquefactive
  • Correct Answer: Option D

what is a keloid?

  • A. hypertrophic tumor-like cicatrix
  • B. greater amount of granulation tissue
  • C. mature connective tissue
  • D. none of the above
  • Correct Answer: Option A

Granulomatous structures, consisting of uric acid crystals, lymphocytes, macrophages, fibroblasts and giant multinucleated cells type “foreign body” are characteristic for which disease?

  • A. gout
  • B. sarcoidosis
  • C. brucellosis
  • D. tuberculosis
  • Correct Answer: Option A

What is the term used for malignant tumors of cover type epithelium?

  • A. papilloma
  • B. carcinoma
  • C. adenocarcinoma
  • D. sarcoma
  • Correct Answer: Option B

what is a scar?

  • A. mature connective tissue
  • B. hypertrophic granulation tissue
  • C. hypertrophic tumor-like cicatrix
  • D. none of the above
  • Correct Answer: Option A

Renal complications of gout include

  • A. uric crystals nephrolithiasis
  • B. urate nephropathy
  • C. uric-acid infarction
  • D. all of the listed above
  • Correct Answer: Option D