Biology MCQs
Tech Books Yard have 1285 Biology for Free Download
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