What are the 3 stages of mitosis GCSE?
The Stages of Mitosis
- Prophase – DNA condenses, chromosomes become visible and the nuclear membrane breaks down.
- Metaphase – Chromosomes line up on the equator of the cell (the metaphase plate)
- Anaphase – Fibres split the chromosomes down the centre and pull one chromatid to either side of the cell.
What are the steps of mitosis and meiosis?
In meiosis, prophase, metaphase, anaphase and telophase occur twice. The first round of division is special, but the second round is more like mitosis. In mitosis, prophase, metaphase, anaphase and telophase occur once. Chromosomes condense and the centrosomes begin to form an early spindle.
What is mitosis and meiosis GCSE?
There are two types of cell division called mitosis and meiosis . Mitosis produces identical diploid body cells for growth and repair. Meiosis produces haploid non-identical sex cells, or gametes . These fuse to form a diploid fertilised egg cell during fertilisation.
What are the stages of meiosis?
Since cell division occurs twice during meiosis, one starting cell can produce four gametes (eggs or sperm). In each round of division, cells go through four stages: prophase, metaphase, anaphase, and telophase.
What is meiosis GCSE?
Meiosis is the type of cell division that produces gametes . A human body cell contains 46 chromosomes arranged in 23 pairs. Human gametes are haploid – so their nucleus only contains a single set of 23 unpaired chromosomes.
What are the 8 stages of meiosis?
Terms in this set (8)
- prophase I. the chromosomes condense, and the nuclear envelope breaks down.
- Metaphase I. pairs of homologous chromosomes move to the equator of the cell.
- Anaphase I.
- Telophase I and Cytokinesis.
- Prophase II.
- Metaphase II.
- Anaphase II.
- Telophase II and Cytokinesis.
What are the stages of mitosis?
Today, mitosis is understood to involve five phases, based on the physical state of the chromosomes and spindle. These phases are prophase, prometaphase, metaphase, anaphase, and telophase.
What is meiosis for GCSE?