Biology

• Genes


  The basic functional unit of heredity
• Genes are the basic functional unit of heredity
• DNA carries segments of genes that are responsible for making proteins
• Proteins


  Provide bodily traits such as eye colour, hair colour, blood type, height etc.
• Switching genes on and off

  1. Genes can be turned on and off like a switch button

  2. Specialised cells in our body are programmed to perform different functions

  3. Only necessary actions are active and necessary are turned off
• Specialised cells


  • Hair cells are programmed to produce hair, not muscle or bone
• Chromosome


  A thread-like structure made up of DNA and proteins, containing multiple genes.