system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Are women’s X chromosomes both the same? If they are different, does that affect how genes are passed down?
gpt
No, like all pairs of chromosomes we have, there are slight differences between the two copies due to one coming from one parent and one from the other. The genes that are passed down aren't really any different from any other chromosomes. A process called "recombination" will basically cut the two copies at random places and then splice them together, so you get an X chromosome that's part of one copy and part of the other. That's what then gets passed to an offspring. Each offspring gets an X chromosome that's spliced together differently.