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Replacement of Red and White Blood Cells

OCR AS-level BiologyCell DivisionLesson 26 of 31

In humans, the bone marrow contains haematopoetic stem cells which divide by mitosis and differentiate into a number of different types of blood cells.

Red blood cells - erythrocytes - carry oxygen around the body.

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Key terms in this lesson

mitosis
Nuclear division producing two daughter nuclei that are genetically identical to the parent nucleus, used in growth, repair and asexual reproduction.

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