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Mitosis and Meiosis explanation please watch

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    Please could someone explain to me both mitosis and meosis for the igcse edexcel spec preferably. Thanks in advanced
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    Mitosis produces normal body cells and it happens for repair, growth, and cloning It produces 2 daughter cells with 46 chromosomes that are genetically identical and only one division occurred in the process of mitosis Whereas, Meiosis only produces gametes which occur in the ovary or testes. It produces 4 daughter cells with 23 chromosomes that aren't genetically identical because it involved 2 division in the process of meiosis
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    meiosis cell division is different from mitosis because it doesn't produce identical cells. In humans meiosis happens in the reproductive organs to produce 4 haploid gametes . Whereas mitosis happens in the body cells to produce 2 genetically identical daughter cells- which is needed for the growth and development for multicellular organisms.

    Meiosis - In the first division before a cell can go grow or divide it has to increase its number of sub-cellular structure. The dna then duplicates itself to form x-shaped chromosomes. The chromosomes then line up at the centre of the cell. At this point the chromosomes are then pulled apart -some of the mothers and some of the fathers chromosomes go into each new cell . And this mixing up of the genes is important in creating genetic variation. The chromosomes contained in these cells are then pulled apart- and again some of the mothers and some of the fathers chromosomes go into each new cell. After the cell division of meiosis you end up with 4 haploid daughter cells. Each daughter cell contains a single set of chromosomes. They are all genetically DIFFERENT TO EACH OTHER AND TO THE PARENT CELL.

    Mitosis- has 5 stages
    Interphase- is where again before a cell can grow or divide it has to increase its number of sub-cellular structure and then duplicate its dna -so each arm of the chromosome is an exact duplicate of the other.
    Prophase- This is where the chromosomes condense-getting shorter and fatter. The cell membrane breaks and the chromosome lies free int he cytoplasm.
    Metaphase- The chromosomes line up across the centre of the cell.
    Anaphase- the cell fibres pulls the chromosomes apart -the 2 arms of each chromosome go to opposite ends of the cells.
    Telophase-cell membrane begins to form around the two set of of chromosomes - these become the 2 nuclei of the cell divides.
    Cytokinesis- Finally the cytoplasm and cell membrane divides two form 2 separate cells.
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    (Original post by fm123456)
    meiosis cell division is different from mitosis because it doesn't produce identical cells. In humans meiosis happens in the reproductive organs to produce 4 haploid gametes . Whereas mitosis happens in the body cells to produce 2 genetically identical daughter cells- which is needed for the growth and development for multicellular organisms.

    Meiosis - In the first division before a cell can go grow or divide it has to increase its number of sub-cellular structure. The dna then duplicates itself to form x-shaped chromosomes. The chromosomes then line up at the centre of the cell. At this point the chromosomes are then pulled apart -some of the mothers and some of the fathers chromosomes go into each new cell . And this mixing up of the genes is important in creating genetic variation. The chromosomes contained in these cells are then pulled apart- and again some of the mothers and some of the fathers chromosomes go into each new cell. After the cell division of meiosis you end up with 4 haploid daughter cells. Each daughter cell contains a single set of chromosomes. They are all genetically DIFFERENT TO EACH OTHER AND TO THE PARENT CELL.

    Mitosis- has 5 stages
    Interphase- is where again before a cell can grow or divide it has to increase its number of sub-cellular structure and then duplicate its dna -so each arm of the chromosome is an exact duplicate of the other.
    Prophase- This is where the chromosomes condense-getting shorter and fatter. The cell membrane breaks and the chromosome lies free int he cytoplasm.
    Metaphase- The chromosomes line up across the centre of the cell.
    Anaphase- the cell fibres pulls the chromosomes apart -the 2 arms of each chromosome go to opposite ends of the cells.
    Telophase-cell membrane begins to form around the two set of of chromosomes - these become the 2 nuclei of the cell divides.
    Cytokinesis- Finally the cytoplasm and cell membrane divides two form 2 separate cells.
    (Original post by Farahaitham_2)
    Mitosis produces normal body cells and it happens for repair, growth, and cloning It produces 2 daughter cells with 46 chromosomes that are genetically identical and only one division occurred in the process of mitosis Whereas, Meiosis only produces gametes which occur in the ovary or testes. It produces 4 daughter cells with 23 chromosomes that aren't genetically identical because it involved 2 division in the process of meiosis
    Both thank you very much, life savers
 
 
 

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