biology 2 chapter 5.1

Cell Division

• In body cells, chromosomes are found in pairs
• Body cells need to divide to produce new cells for growth or repair
• Mitosis is the type of cell division that produces identical new cells 
• Animal cells differentiate early in the development but many plant cells maintain the ability to differentiate throughout their life 

Cell division in sexual reproduction

• Sex cells are produced by meiosis
• sex cells have one set of chromosomes 
• Sexual reproduction gives rise to variation

Stem Cells

• Stem cells are not specialised but can differentiate into many types of different cells when required
• Stem…