BRAINCAKEAnaphase
Anaphase is the third stage of mitosis, following metaphase. At the end of metaphase each chromosome, made of two identical sister chromatids joined at the centromere, is lined up on the equator of the spindle with spindle fibres attached to its centromere.
At the start of anaphase the centromeres divide, so the two sister chromatids of each chromosome separate. From this point each chromatid is treated as a separate daughter chromosome.
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Key terms in this lesson
- centromere
- The region of a chromosome that joins sister chromatids together and to which spindle fibres attach during cell division.
- telophase
- The final stage of mitosis, in which chromosomes arrive at the poles, uncoil, and a new nuclear envelope forms around each set.
More in The Cell Cycle
- Control of the Cell Cycle
- Mitosis
- Prophase
- Metaphase
- Telophase
- Cytokinesis
- Asexual Reproduction
- Sporulation
All 18 lessons in The Cell Cycle · All Edexcel AS-level Biology topics