2007-12-26 01:43:44 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Biology
Very early in developement of an embryo, most of the cells form structures needed for the development of the embryo: the amniotic sac, umbilical cord and placenta. Only a few actually will contribute to the embryo itself.
The placenta contains cells from both the embryo and the uterine lining of the mother, but the blood within the umbilical cord itself is ENTIRELY THE BABY'S. This is why cord blood can be used as a source of stem cells for the baby later in life, and why many parents freeze these cells down for later use.
Edit: For all of the clueless people who think the blood in the umbilical cord is from both baby and mother, please see the following diagram of the placenta. Note the isolation of the maternal and foetal circulation in this diagram of the placenta. The circulatory loop that includes the umbilical cord is a part of the baby's circulatory system, and while the stray cell may cross into it, they are as separate as possible.
http://en.wikipedia.org/wiki/Image:Gray39.png
2007-12-26 03:04:52 · answer #1 · answered by Professor M 4 · 2⤊ 0⤋
Umbilical Cord Contains
2016-10-16 09:22:37 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Yes it does contain DNA...
I know it contains the baby's, and I believe it also contains the mothers. The most logical would be for both to be present as the umbilical cord is a connection between the mother's blood and other systems and the baby's blood and systems, so it should have both.
When doing DNA testing on newborns to verify paternity, I believe it's the umbilical cord that's used to do the testing.
2007-12-26 01:53:22 · answer #3 · answered by Nedra E 7 · 1⤊ 1⤋
The baby's only. Those who have told you that it contains the mother's as well are incorrect. There will be some trace contaminants that can be detected by PCR; however, the umbilical cord is derived wholly from fetal tissue and contains only circulating fetal cells. No other method of DNA analysis (e.g. RFLP) will demonstrate any maternal DNA.
2007-12-26 05:30:54 · answer #4 · answered by Anonymous · 2⤊ 0⤋
I first thought its the baby's DNA because it was developed from the same sperm and ovum from which the placenta and fetus develop, and contains remnants of the yolk sac and allantois. It forms by the fifth week of fetal development. (which could also mean that the 'cord' was developed from the fetus and attached itself to the mother). So I presume that the DNA is dominantly from the baby.
However, if we consider the connection between the mother and child.. perhaps it contains (both?) DNA's.. however, there should only be ONE 'DNA' at a time.. ( i think )
2007-12-26 02:02:45 · answer #5 · answered by Anonymous · 1⤊ 0⤋
The cord itself would contain the baby's DNA. now the blood that travels through it will contain both baby and mothers DNA
2007-12-26 02:05:39 · answer #6 · answered by dch921 3 · 4⤊ 1⤋
yes , it is made up of cells of feotus but blood circulating in it is of both mother and baby....
it is a very good source for stem cells also...
hence umbilical cord banks are formed in some hospitals and research centers in india also...
2007-12-26 06:00:50 · answer #7 · answered by xyz a 2 · 1⤊ 1⤋
it would have to contain dna
2007-12-26 14:37:12 · answer #8 · answered by Anonymous · 0⤊ 0⤋
ofcourse also the babies mother DNA too
2007-12-26 06:03:25 · answer #9 · answered by Anonymous · 0⤊ 1⤋
Normally thats where they run test from also.If you have amniocentisis they stick needle in through there and do all test.yes and yes to question though.
2007-12-26 01:52:02 · answer #10 · answered by hugsandhissyfits 7 · 1⤊ 1⤋