There are two children with different parents, the father claims one of them, and has taken a DNA test. The other child he wont claim, nor take a DNA test. Can you get any results from taking the other childs and getting answers like that. Even though they have different mothers?
2007-10-22 05:17:16 · 11 answers · asked by amberchantelnicolecrone 1 in Pregnancy & Parenting ➔ Other - Pregnancy & Parenting
(BOTH OF THE KID)
(THE LITTLE GIRL)
(THE LITTLE BOY)
2007-10-22 06:33:48 · update #1
Nope won't work. I mean, it'll prove they are related, but it can't prove that they are related by means of him. We all get half our chromosomes from each parent. But, everyone has 2 sets of chromosomes. They are divided and assorted into eggs and sperm randomly. So, while both children will have 23 chromosomes from the father, they may not be the same chromosomes. The odds of them have the exact same 23 are 1 in a billion.
It may, however, be enough to convince a judge that there is a good possibility that he is the father, and force him to take a DNA test. I hope that wasn't all too confusing. Good luck.
2007-10-22 05:24:31 · answer #1 · answered by Dolyn 6 · 1⤊ 0⤋
A test can show whether 2 people are related, and how closely. We have 46 chromosomes, IIRC, so half come from the father, half from the mother.
A parent test is easy - exactly half the chromosomes should match if the parent really is the parent.
A pair of siblings is not as simple, especially half siblings. Each has half the same chromosomes as the father, so the odds are pretty good they should have about a quarter of their genes in common. A test should show this.
There are long odds that they don't have any in common. If you shuffled a deck (minus the aces) and dealt 23 cards to one person, then shuffled the whole deck again and dealt 23 to the next person, what are the odds they would have completely different hands? Or say, 10 to 15 cards the same?
If they are both boys, then they should definitely have the same Y chromosome - the father only has one.
Of course, you have to eliminate any other possible close ties - i.e. are the mothers related, if the fathers are different, how are they related? Without even one parent to eliminate certain matches, the confidence level will be low - especially in a closely connected community. (Or something like "we're all from the same little village in Ireland / Africa / Sicily") The lab could compare mother A against child B and say, "Yep, there is no common DNA on the mother's side".
However, typical North American situation - they can tell right away if the kids share a close relative.
Chromosomes slowly mutate over time, so people who are only distantly related as less likely to show as related; and they are diluted with outsiders, until odds are only 1 or 2 would be in common.
The privacy issue is also important. If you are not the child's guardian, you have no right to do a test with them - unless they're both adults. The lab may or may not require this sort of permission, or you could lie.
If you did find out, what are you planning to do? Peace of mind for yourself, just to tell the father privately, or to haul him into court? That last one might not go over too well if you did an illegal test - so don't tell anyone what you did if that's the case.
2007-10-22 05:57:42 · answer #2 · answered by Anon 7 · 1⤊ 0⤋
If the dad gives a sample of D.N.A. and so do the kids a determination of whether he is the father can be made. If just a sample of the children's D.N.A. is taken the sample can prove if they are related if they have the same mother or the same father. or even both the same parents.
2007-10-22 05:22:42 · answer #3 · answered by Anonymous · 1⤊ 0⤋
You can take DNA from anyone and compare it to anyone, and tell if there is any relationship. Therefore, you can take DNA from the child he claims, and compare it to the child he doesn’t. This will tell you if the 2 children are related. If they are related, and have different mothers, then the logical conclusion is they have the same father. Therefore, you can take the guy to court, and get what’s yours.
2007-10-22 05:21:18 · answer #4 · answered by Anonymous · 1⤊ 1⤋
Yes, the dna will show if they are related and by the father's side.
2007-10-22 05:19:38 · answer #5 · answered by Pantherempress 7 · 1⤊ 0⤋
yes you can as the DNA is split 50/50 between parents.
2007-10-22 05:21:48 · answer #6 · answered by Anonymous · 1⤊ 0⤋
I am not sure of that but DNA can be acquired form a drinking glass, a cigarette but, a strand of hair, etc.
And you can always get a court order also.
Read this: http://www.foxnews.com/story/0,2933,113012,00.html
2007-10-22 05:22:24 · answer #7 · answered by Annie 4 · 1⤊ 0⤋
Yep you can tell by DNA if two children are related!!
2007-10-22 05:22:21 · answer #8 · answered by younglady215 4 · 1⤊ 0⤋
yes, the y chormosome dna would be same in both children if its the same father.
2007-10-22 05:21:12 · answer #9 · answered by jennifer 4 · 0⤊ 0⤋
The privacy act probably prevents you from doing that. It falls under HIPAA even with a court directive.
2007-10-22 05:20:21 · answer #10 · answered by bonstermonster20 6 · 0⤊ 2⤋