Monday, April 2, 2012

67 68 69 Making Babies (with the right number of chromosomes!)

or, Meiosis

67 - we need to make sure that we have the right number of chromosomes in babies (zygotes), so somehow sperm and eggs need to be made with half the number (1N = haploid) of chromosomes of normal somatic cells.  Why do we put so much energy into this kind of reproduction? 
68 - draw the stages of meiosis
69 - checklist for your drawing on p.69

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