Can a DNA test determine if a girl is my niece when his suppose father, my brother, is dead now?

Here is my situation: I had a brother that passed away several years ago, now a woman is claiming that her daughter is his child. If this were to be true, I would have no problem whatsoever, but I want to know if a test of DNA of her and me can determine any connection.

How to get the most accurate genealogy DNA test results if I am female?

If I ever were to have a DNA test done for myself for the purpose of genealogy, would it be most accurate to have myself (female) and my father tested, or to just have my full-brother tested to get the results?
or should this question go under biology...

DNA test???????????????

Hi everyone, my brother has a six year old that he is never allowed to see because of the baby's momma. He is supposed to have her over the weekends but she doesn't let the child come over. For many reasons, the family doubts that the child is my brothers. He has asked for a DNA test in court but she refused. How can we have a DNA test done without the mother knowing? Or is there anything else that can be done? Thanks.

Can you test DNA to see if two people might be related (possibly cousins) without them knowing?

My crazy mother is concerned that there is a ridiculously small chance that my adopted brother might be dating someone that may be related to him without knowing it. My brothers parents were Irish and the girl he is dating is Irish, so she automatically assumes the worst and thinks that they could be related. Is there some sort of DNA test that can be done to see if by any chance they might be related without having to tell them? Can you collect hair or something and send it to someone?

Can a DNA test determine the difference between two brothers progeny with the same female?

If a man suspects his child may be that of his brother. What must he do to determine for certain? Can a simple DNA test of the father/son tell, or must there be a sample from the suspect brother to compare?

If a person takes a dna test and they are 70% not a persons parent could a brother be that parent?

My husband and his brother shared a girlfriend 18 years ago and the mother said it was the brothers (just now) the brother took a dna test and it turned out he was 70% not related to the girl.

Can a Grandmother do a DNA test to see if her a child is her Granddaughter?

My fiances brother is in Japan in the Marines and his ex said that her daughter might be his, would it be possible for their Mother to do the DNA test since he is in Japan and can't get home?

How to get a court ordered DNA test in Ohio?

We have tried 3 times to set up a "civil" DNA test with the mother of my brothers (we think it is his) baby. And everytime we have done this the grandmother of the baby puts a stop to it (the daughter is 17). My brother is wanting to step up and do what he needs to if the baby is his, but like I said they keep stopping our atemps.

What happens when all parties are swabbed for a DNA test and the tips are touching? Could he be the dad?

My brother went to Walgreen's and bought a DNA test in a box, swabbed all parties and put all the swabs in the same envelope and they were all touching one another. The results came back and one was in the 92 percentile and the other was in the 96 percentile. Is there a possibility that the swabs were contaminated with his DNA when they touched in the envelope? Does he need to take this DNA test the right way through a reputable company?