Chimerism cases can also occur in a pair of twins who are both alive because they sometimes exchange chromosomes with each other during the womb. Parisi stated that this could have happened because the blood supply received by the twins was also shared together. If twins are in different sex, then there is a possibility that one or both of these children have half the male chromosome and the other half are female chromosomes. Aside from that, perhaps you also need to check out the finest extracción de ADN equipment that you can buy.
However, the case of chimerism can not only occur in twins. In a single pregnancy, a child in the womb can exchange cells with the mother. A small portion of the fetus’s cells move into the mother’s bloodstream and travel to different organs. The baby’s DNA can be in the mother’s bloodstream because both are connected together through the placenta. Instead, babies can get some mother’s DNA. A 2015 study showed that this happened to most pregnant mothers, at least not permanently.
A person can also become a chimera if they have had a bone marrow transplant, for example, to treat leukemia. After undergoing a transplant, the person will have the rest of his own bone marrow that has been destroyed (due to cancer) and replaced with healthy bone marrow from someone else. Bone marrow contains stem cells that develop into red blood cells. This means that people who get a transplant of bone marrow will get blood cells that are similar to the of the donor, whose genetic code is not the same as other cells in their own body.
How do doctors diagnose chimerism?
Chimerism in humans is a rare genetic condition. It is difficult for scientists to determine how many people in the world have chimerism because this condition usually does not cause symptoms or significant problems. So, it is possible that there are many people who do not realize that they are a chimera until they actually receive a genetic test, DNA test, or other medical tests.
Dr. Brocha Tarsis, a clinical geneticist at Nicklaus Children’s Hospital, Miami, stated that without undergoing a medical test, it would be difficult to determine whether someone had chimerism or not.