Mitosis
- Created by: Freja
- Created on: 10-04-21 09:37
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- Mitosis
- The stages of mitosis flow seamlessly into the next
- What is mitosis?
- Produces genetically identical offspring from one parent
- The process of nuclear division
- The Importance of Mitosis
- Necessary for asexual reproduction
- Important for growth, replacement and repair of tissue
- In plants, animals and fungi
- Prophase
- Early Prophase
- The chromo-somes become more distinct, as they coil up, they thicken, they shorten and they take up stain more easily
- Late Prophase
- The centrioles migrate to opposite poles of the cells
- Early Prophase
- Metaphase
- Each centriole is at a pole
- The centrioles produce spindle fibres
- The spindle fibres attach to the centromere of the chromosome
- The centromeres are attracted to both poles
- The chromosomes are pulled to the metaphase plate (or equator)
- The centromeres are attracted to both poles
- The spindle fibres attach to the centromere of the chromosome
- The centrioles produce spindle fibres
- Each centriole is at a pole
- Anaphase
- The spindle fibres contract
- The centromere divides
- The chromatids are pulled to opposite poles of the cell
- Each half of the cell receives one chromatid from each chromosome
- The chromatids are pulled to opposite poles of the cell
- The centromere divides
- The spindle fibres contract
- Telophase
- The chromatids reach the poles of the spindle
- They begin to uncoil and become less distinct
- The nuclear envelope start to reform around each new set of chromosomes
- They begin to uncoil and become less distinct
- The chromatids reach the poles of the spindle
- Chromosomes
- One Chromosome (before replication)
- One chromatid per chromosome
- One chromosome (after replication)
- Two chromatids per chromosome
- One chromosome (after mitotic division)
- One chromatid per chromosome
- Genetic information (gene/ alleles) that is carried on each chromatid is identical
- One Chromosome (before replication)
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