Identical twins are formed from an egg that is fertilized by a sperm, which divides into two embryos during cell division, eventually developing into two fetuses. They will be genetically identical, regardless of sex or appearance. Fraternal twins are born when a woman ovulates two eggs during that month and each egg is fertilized by a different sperm until it develops into two babies growing inside the woman’s uterus at the same time. Thus, fraternal twins can have different body shapes, faces and genders.

Nowadays, medical technology has advanced to make it easier for mothers to have twins. in the treatment of infertility Sometimes doctors need to insert more than one embryo to increase the chances of success. It turns out that many mothers are more likely to have twins.”