mitosis and cell cycle 1.2.2

• there are 2 types of cell division: mitosis and meiosis
• mitosis is the most popular cell division (99.9% of cells)
• meiosis is only when we create a child
• mitosisis used for 3 reasons: growth of new cells, repair and replacement of worn out cells and asexual reproduction in plants and yeast
• mitosis is used in plants, in special areas called meristems (root or shoot tip)
• mitosis occurs throughout the life of an organism
• stage 1 of mitosis is the longest stage where the cells grow bigger and increase mass, their genes replicate themselves to make two chromosomes and there is an increase in number of all organelles
• stage 2 of mitosis is where the chromosomes pair up on the equator of a cell and one set of chromosomes is pulled to each end of the dividing cell and the nucleus divides
• stage 3 of mitosis is where the cytoplasm and cell membranes also divide to form two genetically identical daughter cells