Recent comments in /f/askscience

Gohron t1_j3fxdaz wrote

Reply to comment by [deleted] in How long does HIV remain infectious outside the body? by Terradubia

My understanding is that it is not even common to pass it on sexually. Perhaps there is more recent info but I recall reading research before that transmission from an infected person to a non-infected person was 1% or less (though this number varied based on the type of sex and who the infectious one was) per sexual encounter.

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I4Vhagar t1_j3ftven wrote

Reply to comment by Boring_Ad_3065 in How does DNA encode 3d space/information? by Rit2Strong

Lex Friedman had an evolutionary biologist on his podcast, sometime in the last few months. The way he explained it was that the accumulation of simple mechanisms trend towards the more complex mechanisms via gradients, electron affinity, etc. I believe it was with Michael Levin, but I can’t play the audio to confirm right now.

I’ve had the opportunity to work with quite a few patients that were born with anatomical structures where they shouldn’t be or oriented abnormally (e.g. Apert syndrome and dextrocardia). It’s fascinating stuff from a biological standpoint.

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