You run into your old friend, Manuel, who tells you that (strange as it sounds) he and his identical twin brother José got married to identical twin sisters! He says it's going to be really crazy, because both couples are pregnant, so his and José's kids will also be identical twins!
Using your understanding of how sperm and ova (egg) are made, what do you say to Manuel in response?
Please provide 3 pieces of detailed evidence to support your response.
Compare and Contrast Mitosis and Meiosis - what do they have in common, what is different about them?