Identify the correct statements from the following .
I. When DNA is hydrolysed adenine and thymine are obtained in equal quantities.
II. When RNA is hydrolysed adenine and uracil are obtained in equal equantities .
III. Amylose is branched polymer with `alpha 1 to 4 and alpha 1 to 6` glycosidic linkages.
IV. Addison disease is due to the abnormal functioning of adrenal cortex .

Options

A. I,II,III only
B. I,II,III,IV
C. I,II,IV only
D. I,IV only

Answer

D

Explanation

Statements I and IV are correct statements .
I. When DNA is hydrolysed adenine and thymine are obtained in equal quantities because these two are bonded by H-bonds .
II. When RNA is hydrolysed, adening and uracil are obtained in unequal quantities .
III. Amylose is an unbranched polymer with ` 200 - 1000 alpha - D (+) - ` glucose units that are held together by `C_(1) - C_(4)` glycosidic linkage.
IV. Addison.s disease is due to the abnormal functioning of adrenal cortex . It is caused by deficiency of minerals corticoids .