"In the first step of meiosis, you don't divide by two, you multiply by two." - David C. Page

Supplementary videos

Geometry in nature: fractals and Fibonacci rabbits
Evolution of Y chromosome over 300 million years: are the X and Y really homologous? (HHMI)

Extra credit readings

• 2010 Nobel Prize in Medicine or Physiology: In Vitro Fertilization Scientific American 10/4/10
• Seedless Watermelon University of Arkansas 8/29/03
• Are Males Genetically Doomed? Futurist Mar/Apr 05
• The XX Brain and the XY Brain Psychiatric Times Aug 05

Additional material

• How many times have your cells divided to reach 100 trillion?

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