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RE: The Great Kitchen Blender Experiments: How DNA was proved to be the seat of heredity

in #biology7 years ago

Just read the article. It's a good one. Kinda satisfying to read it just after I wrote this cos I feel somehow strangely vindicated, like "yeah, that's exactly how it happened". As if there was any debate! Also I have a crisply fresh understanding of the topics.

Also good to know more about Martha Chase. Her divorce and her reaction to it made me sad.

I also found the following passage interesting:

Their famous Luria-Delbruck experiment in 1943 demonstrated that genetic mutations in bacteria arise randomly in the absence of selection, not as a consequence of selection;

I thought that was dogma, unnecessary to be proved by experiment! It's also part of my whole "the survival instinct does not exist" idea: organisms cannot actively adapt to the environment, they merely present random mutations and survive or die according to whether the mutations are beneficial. If they were mutating in response to the environment that would create a vicious circle and it would be impossible to prove Darwin's theory since it would be tautological.

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