Mr_Mojo_Risin_83

Mr_Mojo_Risin_83 t1_jeei03u wrote

Reply to comment by PublicSeverance in TIL in the 1920s, Coco Chanel accidentally got a tan, and helped inspire the trend of sunbathing. Soon "sunlight therapy" was prescribed for almost every ailment from fatigue to tuberculosis. Before this, tanned skin was associated with the lower classes who work outside, and fair skin was revered. by Pfeffer_Prinz

you must be fun at parties. all your friends love having you around

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Mr_Mojo_Risin_83 t1_jechynj wrote

Reply to TIL in the 1920s, Coco Chanel accidentally got a tan, and helped inspire the trend of sunbathing. Soon "sunlight therapy" was prescribed for almost every ailment from fatigue to tuberculosis. Before this, tanned skin was associated with the lower classes who work outside, and fair skin was revered. by Pfeffer_Prinz

There’s nothing healthy about a tan. The sun is no joke. It will fucking kill you. Everyone carries on about the spiders and snakes in Australia but the sun is the number 1 killer here.

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Mr_Mojo_Risin_83 t1_jdowvga wrote

Reply to comment by Captain-Griffen in ELI5: How come recessive genes don't die out? by JackytheWriter

also, any gene that's only carried by 1% of a population will almost surely disappear anyways. even if it's not detrimental to survival. if you have a pond of 100 fish and only 1% carry the gene, then a bird comes and eats 20 x fish, there's a random chance the 1 fish with the gene will be removed from the gene pool entirely. whereas the other 99% will always have numbers among the survivors.

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Mr_Mojo_Risin_83 t1_jdoucxb wrote

Reply to comment by Captain-Griffen in ELI5: How come recessive genes don't die out? by JackytheWriter

in the case of the goldfish though, if only 1% carry the gene, then there's almost no bright gold ones and when there are, the birds can see them and eat them easier. the bird is unlikely to push away from the behaviour of 'being able to see brightly coloured things more than dark things.'

if the other 99% aren't carrying the gene at all then they carry on reproducing dark colours with absolutely no chance of their offspring being gold coloured.

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Mr_Mojo_Risin_83 t1_jdor4tk wrote

Reply to ELI5: How come recessive genes don't die out? by JackytheWriter

the recessive gene is still within the person and can be passed down to the offspring. if both parents carry the recessive gene (ie, blonde hair) and a copy of the dominant gene, (ie, brown hair) then both parents will have brown hair. however, they can both pass on the blonde hair gene to the offspring resulting in a child with blond hair.

the recessive gene would only die out if we had, say a predator that found it easier to find and eat blonde haired people. then those people would get plucked out of the gene pool while brown haired people were more likely to reproduce.

this happens a lot with goldfish. goldfish can be gold or brown. birds find it easier to see and eat the gold ones, leaving the brown ones behind. a pond full of mixed colour goldfish will eventually become all dark colours after time as the gold ones get eaten off by birds more easily.

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