Do twins share the same umbilical cord?

Answer 1

Fraternal (non-identical) do not share the same placenta as they are two babies formed from two eggs and two sperm. If they implant close together they may appear to be one placenta, but they are not. Identical twins formed from one egg and one sperm may split at any stage from the two cell right up to late in embryonic development which produces conjoined (Siamese) twins. The later in embryonic development the split occurs the more likely they are to share a placent.

Answer 2

Identical twins can go the whole way from separate placentae through to sharing organs,as in conjoined twins. It depends at what stage of the pregnancy the embryo splits in two. The earlier it occurs the more separate the placentae, cords etc.

Answer 3

My twin sister and I were born 9/11/41. The Dr. Traywick told my mother that we would be identical, because we were on a Y-shaped cord or connected cord. He had delivered hundreds of babies in that little west Texas town.

But we were not identical, as anyone could see even in baby pictures. She looks like mom's family, and I resemble dad's. We do have many similarities, however.

We are a third kind of twin--half-identical. The egg divides first, into two identical eggs, and each is then fertilized seperately, so we have identical genes from mother, and different genes from our father. Our grandmother and grandfather raised laying hens, and sometimes we would find a double-yolked egg. Well, we two are from a double-yolked egg, so to speak.

Linda and I have always been exactly the same height, and we began our first menstrual period on the same day. (Each of us thought the other was lying.)Our three sisters did not start their periods at the same age we did. We also began menapause the same year though we lived half a continent apart. If one of us has a physical problem, we call to see if the other one has it too!

Our brother and his wife have identical twins, so identical they could fool their mother when they were young. I don't know about their umbilical cords.

My conclusion is that twins can share the same umbilical cord. We did.

Answer 4

Identical twins have to same cord but non-identical do not