Inheritance, Variation and Evolution

• function of non coding parts of DNA

  determines what proteins the cell produces
• for and against screening embryos for genetic disorders

  for:

  help stop people suffering

  laws to stop it going to far

  government spends a lot of money on treating disorders

  against:

  expensive

  implies genetic conditions could be undesirables (increase prejudice)

  used to pick the most desirable embryo
• Mendel's 'units'

  genes
• Lamarck's theory of evolution

  if a characteristic was used a lot by an organism then it would be passed on to the offspring