Science through my eyes: Rapid evolution!

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The yeast we study have a mutation that makes them build up a red pigment. But let them grow a little extra and sometimes they’ll end up changing color in parts of the colony! Mutations can build up really quickly, particularly if they’re adaptive. Every time I see this happen on my Petri dishes, I’m amazed both at nature and at the people who still don’t believe in evolution. Certainly, this is the micro-est of microevolution, but it happens in just a few weeks, under tightly controlled lab conditions. Seeing it on the small scale helps me relate a bit better to large-scale evolution, which is hard to conceptualize.

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thegeneticsgal

I've been writing about my weight loss (-100lbs, now just -80 bc of regain) for years. Now I also write about science. Find me at thegeneticsgal.com and say hi.

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