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Variation, Evolution and Pollution
VARIATION

Inherit genetic info from parents through sex cells (gametes)
Cell -> Nucleus -> Chromosome -> DNA -> Genes
In the 1950s James Watson and Francis Crick attempted the first model of DNA and came up
with the double helix shape we are familiar with today.…

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EVOLUTION

Lamarck's theory: Inheritance of acquired characteristics meant that useful changes
developed by parents during their lives to help them survive are passed to their offspring.
Charles Darwin's theory: in 1831 he set out to the Galapagos Islands, and saw that the birds
were variations in terms of their beaks.…

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Swallowtail

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A well written set of key points on variation, evolution and pollution which could be teamed up with some flashcards and a quiz or two to make a useful set of resources.


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