question_answer

In humans,

I. non-coding DNA is abundant.

II. less than 2% of genome codes for protein.

III. the function of more than 50% genes are unknown.

IV. total number of genes is 30000.

Choose the correct option.

A) I, II, III and IV       

B) I and III

C) I, II and IV                     

D) I, II and III