What’s a common “fact” that’s spread around that’s actually not true and pisses you off that too many people believe it?

  • FreshParsnip@lemmy.ca
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    19 hours ago

    I got another one. It bugs me when people say that it’s not possible for two dark haired people to produce a blonde child. These people think they’re so smart because they know genetics exist. But if they learned anything about genetics at all, very basic punnet square genetics you learn in highschool biology explains why it’s not only possible but pretty common. If both dark haired parents are carriers for the blonde gene, there is a 25% chance of a blonde child. And reality is probably more complex than what I learned in highschool.

    It’s like the stubborn fuckers who refuse to accept the science of sex and gender being any more complex that “penis man vagina woman”. They think they’re so smart for knowing “basic” biology and refuse to fucking learn anything beyond that.

    • CyanideShotInjection@lemmy.world
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      17 hours ago

      There are many genes that affect the color of our hair and skin. Dark colors are caused by higher amounts of melamine in hair/skin. Those darker traits are dominant genes. In the same vein, two black people can have a child that will have lighter skin than them if the parents carry recessive genes and pass them on.

      But it is even more complex than that because there are so many factors that affect the expressivity of genes : the environment, the diet or even other genes.

      And don’t get me started on genre/sex… Biology is sooo complex, and genetics is just one of its branch, but people want to believe it’s simple to justify their bigotry. I studied biology for two years at university and I just know that I know practically nothing about it…