#挑战30天在头条写日记#
The dragon and phoenix twin sister is soft and soft, white and chubby like a snow girl, and her brother is black and black, crying all day long like a dirty bag...
Obviously the twins were born in the same year, the same month and the same day, why don't they look like each other?
In fact, most of the dragon and phoenix fetuses do not look very similar, and most people can distinguish between two people, unlike those twin sisters or twin brothers, and even parents may not be able to distinguish which one is a sister or sister or an older brother.
Because the dragon and phoenix fetus is the mother in the ovulation period to release two eggs and father two sperm combined to form twins, one of the two sperm sex chromosomes is xx is a girl, the other sex chromosome is xy is a boy, forming a dragon and phoenix fetus. That is to say, the genes of the dragon and phoenix fetus are different!
Those twin brothers or sisters who look very similar are when the mother releases an egg during ovulation and only combines with one sperm of the father, and then divides to form two embryos, because the genes are the same, so they look very similar.
Topic: Do those dragons and phoenixes around you look like them?
