slightly more than half of everything i am is thanks to you (thanks, mum)

By Alison Campbell 26/05/2010

For teachers (& students): a biologist’s song for Mother’s Day. (Yes, I know it’s late, but my wonderful tutor just found the video!) It makes the point that, thanks to cytoplasmic inheritance & the nature of what goes on in the womb, slightly more than half of every mammal is due to the mother: we’re not simply the result of a 50:50 genetic combination of maternal & paternal DNA :-)

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