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Which one of the following human cells is devoid of a nucleus?

June 1, 2025 by rawan239

Which one of the following human cells is devoid of a nucleus?

Nerve cell

Bone cell

Red blood cell

White blood cell

This question was previously asked in

UPSC CISF-AC-EXE – 2024

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Mature mammalian red blood cells (erythrocytes) are unique among human cells in that they lack a nucleus, as well as other organelles like mitochondria, ribosomes, and endoplasmic reticulum. This adaptation allows them to maximize the space available for hemoglobin, the protein responsible for oxygen transport, and also makes them more flexible to squeeze through narrow capillaries.

Mature red blood cells are anucleated, meaning they are devoid of a nucleus.

While mature red blood cells in mammals lack a nucleus, this is not the case for red blood cells in birds, reptiles, amphibians, and fish, which retain their nuclei. Nerve cells, bone cells, and white blood cells are all nucleated cells that perform various functions in the body, such as transmitting electrical signals, providing structural support, and fighting infections, respectively.

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