There are situations that occur during fertilization, if the egg somehow loses it genetic material, the sperm enters the egg, but it duplicates its own half genome to form a 46 pairs but this is abnormal, because the gene pattering and also epigenetic silencing is different from males and females, so it forms abnormal mass of tissue called a mole; it can be partial or complete, one of the types can become a rare form of cancer
There are situations that occur during fertilization, if the egg somehow loses it genetic material, the sperm enters the egg, but it duplicates its own half genome to form a 46 pairs but this is abnormal, because the gene pattering and also epigenetic silencing is different from males and females, so it forms abnormal mass of tissue called a mole; it can be partial or complete, one of the types can become a rare form of cancer
TIL meiosis gone wrong can cause a cumshot to give you cancer.
Thanks, internet stranger!