1. The centromeres divide and the chromatids separate.2. Each chromatid is pulled to opposite poles by the shortening of spindle fibres attached to the centromeres.3. Each chromatid is pulled through the cytosol to a pole with the centromere first.
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Specification: OCR Biology A (H020), AS-level, 2.1.6 Cell division, cell diversity and cellular organisation. Topic: Cell Division.
Key terms in this lesson
- chromatid
- One of two identical copies of a chromosome, joined by a centromere, formed after DNA replication.
- centromere
- The region of a chromosome that joins two sister chromatids together and attaches to the spindle fibres.
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- Sources of Animal Stem Cells
- Sources of Plant Stem Cells
- Uses of Stem Cells
- Ethics
All 31 lessons in Cell Division · All OCR AS-level Biology topics