Yes, mature red blood cells in humans lack a nucleus. This helps them carry more oxygen. Some other specialised cells may also lose their nucleus to perform specific functions efficiently.
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Yes, mature red blood cells (RBCs) in humans do not have a nucleus. This allows more space for haemoglobin, increasing oxygen-carrying capacity. Some specialised cells may also lack a nucleus or lose it during development to perform specific functions more efficiently, although most cells generally contain a nucleus for controlling activities.
For more NCERT Solutions of Class 9 Science Exploration Chapter 2 Cell: The Building Block of Life (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-2/