Examveda
Examveda

Respiratory distress syndrome in premature infants is caused by the absence of

A. Cephaline

B. Lecithin

C. Phosphatidyl serine

D. Myoinositol

Answer: Option B


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Sex ratio is defined as

A. No. of females/1000 males

B. No. of males/1000 females

C. No. of female births in 1000 births

D. No. of male births per 1000 births