Question

Which of the following cells do not contain nucleus?

I. Root hair cells

II. Red blood cells

III. Platelets

IV. Monocytes

Select the correct answer using the codes give below.

(a) Only I

(b) II and III

(c) I, II and IV

(d) II, III and IV

Answer 1

(b) II and III

Option (b) is correct that RBCs and platelets do not contain nucleus.

The Red Blood Cells (RBCs) upon maturity looses its nucleus in order to increase its cellular surface area for gaseous exchange. Likewise platelets are also non-nucleated blood cells.