This Woman Is Her Own Twin, But How? | What Is Chimerism? | Your Twin Might Already Be Inside You

You might know of a creature called the chimera, described in Greek mythology, as a fire-breathing hybrid creature with the head of a lion, the body of a goat, and the tail of a dragon. But chimeras should not only be considered part of mythology, because in real life they can also exist as animals or humans, having two different sets of DNA. In other words, people meant to be a twin. In some animals, it is quite common, but in humans it is difficult to detect.

Twins are usually identical in appearance, but their bodies are different and those different bodies have different DNA, different blood groups, and different immune cells. But have you seen any person who is considered to be his own twin, that is, two DNA, two immune cells and two blood groups in the same body? Yes, you hear that right, there is such a person too, the name of that girl is Taylor Muhl who is her own twin, who has two DNA, two blood groups and two immune cells in her body. 

Actually if you are looking at this picture carefully, then naturally there are two colors on her body, as her two sets of genes are not fully compatible with each other, and in fact that second color is considered to be of her twin sister. In fact, it is a genetic condition called chimerism, in which a human contains the cells of two or more individuals, containing two different sets of DNA. Within a chimera's body itself they do not their own, as in very real terms they are two people.

In simple words, Chimerism occurs when one of the twin in the womb dies and some of the cells of its deceased twin becomes absorbed by the surviving twin, resulting in the surviving twin having two sets of cells: its own, and some of its twin’s. The condition is believed to be quite rare, which may be occur more commonly with some fertility treatments, such as in vitro fertilization (IVF), but this doesn't proven to be entirely true.