Tag: chromosomes

  • X, Y, Male, Female…

    In most mammals, us included, biological sex is determined by a lottery between two letters: X and Y, the sex chromosomes. Inherit one X each from mom and dad, and develop ovaries, a womb and a vagina. Inherit an X from mom and a Y from dad, and develop testes and a penis. But there […]

  • Male, female, what’s the difference?

    > Help translate the Harmonia Philosophica book in 6 new languages and get valuable perks in return! Support the Indiegogo project now! Painstaking new analysis of the genetic sequence of the X chromosome — long perceived as the “female” counterpart to the male-associated Y chromosome — reveals that large portions of the X have evolved to play […]