When a woman is carrying twins, and one embryo dies, the second embryo absorbs the twin's cells and a condition known as chimerism results. Given that the infant develops from four gametes-one egg and one sperm for each embryo -this sort of chimerism is known scientifically as tetragametic.
All the answers published in this website are written by verified medical doctors, therapists and health experts. The Content has been moderated by iCliniq medical review team before publication. Post your medical clarifications on iCliniq by choosing the right specialty and get them answered. Your medical queries will be answered 24/7 by top doctors from iCliniq.
Is it normal to have both positive and negative blood?
Query: Hi doctor, When I was 17, I donated blood. They sent me a card with my blood type B positive. When I was pregnant, the first time they tested it twice and told me it was B negative. I thought the donation test had been wrong. After my second child, my doctor upon hearing this story checked my blood ... Read Full »
Answer: Hi,Welcome to icliniq.com.A person who has more than one set of DNA is a chimera, and the condition is called chimerism.Chimerism usually does not cause problems. It is rarely diagnosed and making it hard for scientists to say how prevalent the phenomenon truly is.It is probably less rare than was o... Read Full »