So, say I get a set of chromosomes from my Mum which contains the X chromosome and the same from my Dad, but with the Y chromosome. I now have two sets of the same 22 chromosomes, plus an X and a Y.

For chromosome number one for example, is everything from my Dad’s side activated? My Mum’s? Or is is a random selection of genes within each chromosome?

And does the X chromosome do anything for me, or is it turned off, and only used if I pass it on to the next generation?

Follow up question: I believe that women actually recombine their X chromosomes when passing these on, but men can’t recombine X and Y. So everything on your Dad’s side stays the same. Does this have any impact? For example are you more likely to inherit genetic defects from your Dad’s side?

  • givesomefucks@lemmy.worldEnglish
    92·
    5 months ago

    They reside in the X chromosome and sometimes one is defective or missing. That’s why color blindness is more common in males.

    Yeah. That’s a little out of date.

    Colorblindness isn’t worse vision, just different.

    You got more rods for the missing cones, it’s not just blank space.

    That helps lowlight vision, and the colorblind are also better at differentiating shades of brown.

    Like, my dad was colorblind, and he could spot a deer in the woods from like a mile away. To him it was completely obvious and he never got why other people couldn’t see the deer.