Q76 / 200 · MHT CET - Medical 2026 (21 April Shift 1) · Biology
Which one of the following statements is INCORRECT with respect to thrombocytes ?
- AThrombocytes are cellular fragments formed from the large cells called megakaryocytes.
- BThese are produced in bone marrow.
- Correct answerCThese are very small, nucleated, biconcave cells.
- DThe normal count of thrombocytes in human blood is about 2.5 - 4.5 lakh/$\text{mm}^3$ of blood.
Solution
Thrombocytes, commonly known as platelets, are cell fragments produced from megakaryocytes (special cells in the bone marrow).
They are non-nucleated structures, not nucleated biconcave cells. (Mature mammalian red blood cells are enucleated and biconcave, while white blood cells are nucleated).
Therefore, the statement that thrombocytes are nucleated, biconcave cells is fundamentally incorrect.
Answer: These are very small, nucleated, biconcave cells.
They are non-nucleated structures, not nucleated biconcave cells. (Mature mammalian red blood cells are enucleated and biconcave, while white blood cells are nucleated).
Therefore, the statement that thrombocytes are nucleated, biconcave cells is fundamentally incorrect.
Answer: These are very small, nucleated, biconcave cells.
Hence, the correct answer is option: 'C'.