What's a DNA maternity test?
364637
A DNA maternity test involves the same as a DNA paternity test.  They verify the maternity of an individual.  It is used for various cases like for persons that are adopted and then reunited with their biological mother or they do it if they suspect some sort of mixup with babies at a hospital.  Sometimes it is used for babies that are born from in vitro fertilization to verify that the doctor implanted the right embryo.
104426
DNA is a good source of evidence for forensic experts, for doctors to identify cancer, recently used for SARS detection, to name a few .\n\nThere are techniques which are used to detect the presence of a specific sequence in a given DNA sample. PCR  or Polymerase Chain Reaction is one of them. here we amplyfy a specific sequence of DNA of interest. if the biological sample contains that DNA sequence then its amplified and can be visualized on a electrophoretic gel. DNA being negativey charged runs on an agorose gel under electric current towards the positive electrode and gets separated based on the size...slower the movement the bulkier the fragment. \n\nforensic experts use this to match DNA samples from site of crime to the suspect. this can also be used in case of paternity disputes, to detect the predisposition of a person to cancer etc etc.\n\nthere are many more techniques which you can search
172453
.........and who would pay for that ?........\nNothing comes free.\nIt is up to the father (generally) or the two persons to choose if they want to know.\nHad read (very unscientific though) that up to 25% of kids in the UK were procreated not by their own supposed father.\n\nBut for people who are absolutely sure where the DNA comes from, I could imagine it as a big slap in the face and regarded as an insult.\n\nAnd anyway........you will have to question the idea of what is personal and what is not and it could be viewed as a great infringement on people's rights and freedom.
179832
I would recommend an amnio to a pregnant woman if she and her husband were reasonably concerned about potential problems that could be detected by this test.  \n\nReasonable concern regarding the presence of genetic disorders could arise out of family history, previous reproductive history, or the presence of known risk factors for genetic disorders, such as maternal age.
344530
This is called Chimera. After the mythological beast which had body parts of different sets of animals.\nA Chimera will usually have their blood and tissue of one DNA, while their reproductive organs and some inner organs will be of another. This is fairly random as to the "where" and "what," and it usually comes up as a concern in DNA testing when a mother is seemingly not the parent of her child. Or in crime cases where they cannot identify the rapist based on semen.\nThis condition occurs when two twins are begining to form within the womb, and for whatever reason one twin dies--and the other cell takes on the DNA--as a "clean up" if you will. The result is that the one cell finds no reason not to use the perfectly good DNA, and incorporates both wherever it sees fit.
163691
For the purpose of "designing" a baby, in vitro fertilization is performed. Then DNA of the obtained embrios is tested, and only embrios that match certain genes of the sibling are implanted. The newborns therefore are genetically very close to their siblings and can donate stem cells, bone marrow etc which will not be rejected by the recipient's organism.
241655
The only blood test that I have heard of relating to double-stranded DNA is an antibody test.  In certain autoimmune diseases, most commonly lupus, the body's immune system becomes activated against normal components of your body rather than what it should be attacking (foreign things).  In lupus, the body produces antibodies against double-stranded DNA (genetic material).  A positive lab test could indicate that the person has lupus.  With that said, lupus is a very complicated disease to diagnose.  They would never diagnose it based on a single positive lab test.  An immunologist or rheumatologist could explain in detail exactly what is needed to diagnose lupus.
246184
Get DNA testing done.  They can't make you pay support on a child that does not test as yours.
1135308
Last I heard.  babies DNA came form the parents, not God.  hellloooooo?
390071
fetal fibronectin test...\n\nA cotton swab is used to collect samples of cervico-vaginal secretions during a speculum examination (similar to a Pap smear). The analysis of the sample takes six to 36 hours. The result is either positive (fFN is present), or negative (fFN is not present)\n\nA negative fFN test result is a highly reliable predictor that delivery will not occur within the next two weeks. A positive result is a less reliable predictor of preterm labor: there is still  a fair chance that the pregnancy will continue for at least another two weeks. Why do you think that yours was done incorrectly?
988094
This is about as close as I can get you. Good luck\nhttp://www.genetree.com/product/dna-test-collection.asp
177595
Hopefully they will pass a law on mandatory paternity testing. It would save a lot of time (in courts) and confusion (on the childs behalf) and a lot of money if the truth was known from day one.
619827
Abstract\nA method and apparatus for determining if a pregnant woman is at significant risk of carrying a fetus with Down syndrome, The method comprises measuring the pregnant woman's maternal blood levels of the free beta subunit of human chorionic gonadotropin. The level of free beta subunit of human chorionic gonadotropin individually or with other markers may be compared to reference data. A computerized apparatus for making the determination preferably using a probability density function generated from a set of reference data by a linear discriminant analysis procedure is disclosed.\nParent Case Text\nThis application is a continuation of application Ser. No. 07/420,775, filed Oct. 12, 1989, which is a continuation-in-part of application Ser. No. 07/360,603, filed Jun 1, 1989, which is a continuation-in-part of application Ser. No. 07/349,373, filed May 8, 1989, which is a continuation-in-part of application Ser. No. 07/311,808 filed Feb. 17, 1989 which is a continuation-in-part of application Ser. No. 07/297,481, filed Jan. 17, 1989, all now abandoned.\n\nClaims\nWhat is claimed is: \n\n1. A screening method for determining a pregnant woman's risk of carrying a fetus with Down syndrome comprising: measuring said pregnant woman's maternal blood for free beta (human chorionic gonadotropin (HCG)) level, comparing said level of free beta (HCG), and said pregnant woman's gestational age, to reference values at various gestational ages of the level for free beta (HCG) in: (1) pregnant women carrying Down syndrome fetuses and (2) pregnant women carrying normal fetuses, said comparison being indicative of said pregnant woman's risk of carrying a fetus with Down syndrome, wherein a higher level of free beta (HCG) is indicative of a higher probability of carrying a fetus with Down syndrome. \n\n2. The method of claim 1 further comprising: measuring said pregnant woman's maternal blood for intact human chorionic gonadotropin molecule (Intact HCG) level and incorporating said level for Intact HCG and reference values at various gestational ages of the levels Intact HCG in: (1) pregnant women carrying Down syndrome fetuses and (2) pregnant women carrying normal fetuses into said comparison wherein a higher level of Intact HCG is indicative of a higher probability of carrying a fetus with Down syndrome. \n\n3. The method of claim 2 further comprising: measuring said pregnant woman's maternal blood for alpha-fetoprotein (AFP) level and said pregnant woman's maternal blood for unconjugated estriol (UE) level and incorporating said level of AFP, said level of UE, and reference values at various gestational ages of said levels of AFP and UE in: (1) pregnant women carrying Down syndrome fetuses and (2) pregnant women carrying normal fetuses into said comparison wherein lower levels of AFP and UE are indicative of a higher probability of carrying a fetus with Down syndrome. \n\n4. The method of claim 3 further comprising: incorporating a ratio of said measurement of said level of said free beta (HCG) to said measurement of said level of said Intact HCG and reference values at various gestational ages of the ratio of the level of free beta (HCG) to the level of Intact HCG in: (1) pregnant women carrying Down syndrome fetuses and (2) pregnant women carrying normal fetuses, into said comparison wherein a higher ratio is indicative of a higher probability of carrying a fetus with Down syndrome. \n\n5. The method of claim 2, further comprising: measuring said pregnant woman's maternal blood for alpha-fetoprotein (AFP) level and incorporating said measurement of said level of AFP, a ratio of said level of said free beta (HCG) to said level of said intact HCG and reference values at various gestational ages of the ratio of the level of free beta (HCG) to the level of Intact HCG and the level of AFP in (1) pregnant women carrying Down syndrome fetuses and (2) pregnant women carrying normal fetuses into said comp
542269
Its not a test per say, test is the name given to a tiny shell which orginally came from a marine organism called Foraminifera, these shells are known as tests, they help indicate past conditions because the tests are calcareous they contain different percentages of chemicals from the enviroment.
1069958
If you are having amnio or CVS done during pregnancy, paternity testing can be done then.  Otherwise a test would be done by using a swab placed in the mouth, to collect cells.
960597
antenatal means before birth...while you are pregnant.
164690
Hemoglobin electrophoresis is the best method, but it requires fetal blood. If you and your baby's father are both B-Thal minor, then there is a problem. Otherwise, the Dr will probably choose to do the test at delivery.