386. Excessive deposits of copper in liver cells, degenerative changes in the brain, and a greenish-brown ring at the outer margin of the cornea characterize which of the following?

 A Galactosemia
B.     Phenylketonuria
C. Wilson's disease
D.     Diabetes mellitus

Ans-c.wilson's disease

385.Which of the following conditions predisposes to lung cancer by causing squamous metaplasia of bronchial epithelium?

 ABronchiectasis
B.     Bronchial asthma
C.Chronic bronchitis
D.     Bronchial carcinoid

Ans-C.Chronic Bronchitis

384.An autosomal dominant trait showing 50 percent penetrance will be phenotypically expressed in what percent of the offspring?

A.     0

B.     25

C.     33 

D.     50

Ans-b.25%