Question

Which is correct about leucocytes?

• A. They are red coloured.
• B. They can cross capillaries.
• C. They are enucleate.
• D. Decrease in their number causes leukemia.

Answer 1

The correct option is B They can cross capillaries.

A. Leucocytes are white blood cells (WBCs).

B. They are capable of amoeboid movement due to which they can cross or squeeze out of the capillaries into tissues and this process is known as diapedesis.

C. They are nucleated i.e., they have a nucleus.

D. Increase in their number cause leukemia which is cancer of WBCs.

Hence, only statement B is correct.

So, the correct answer is 'They can cross capillaries'.