Darwin's Burning Question
Darwin's Theory of Evolution lacked a credible explanation for characteristics which skipped generations.
Mendel and Heredity
The story of Mendel who in the 1850's observed hereditary patterns in plants such as the pea.
Galapagos & Nature's Variety
Darwin travels to Galapagos Islands and is confused by the variations within species such as finches.
Darwinism Meets Mendelian Genetics
Only in the 1930's was it realised that it is not attributes that are passed on but genes.
Miescher Identifies DNA
Miescher speculates that DNA could provide the missing piece of the puzzle of how the laws of inheritance worked physically. .