Yes as long as you have a sample of something they have left a trace of their DNA on. For instance a fingernail, hair, or even skin. As long as you have something with the DNA in it, testing upon that can be done. It is always easier to take a fresh sample from the child however.
can be done prenatal.
i think 34 years person can get a DNA test done without a parent's signature.
By having a DNA test done
It's gone.
If you don't trust the mother a DNA test is the only way I guess. The child can also look like you.
Contact a dna testing company and tell them the situation. If the child consents then most jails will allow a dna sample to be taken.
You can have DNA testing, such as paternity, ancestry, etc. done through www.dnatesting.com. You pay for the test and mail you sample to them. The test is done privately at your discretion.
if someone had taken a DNA test when a child was about 6 months old only to find out that he was the Dad 4 years later. Is this possible or should he get another DNA test done?
A maternal DNA test compares the DNA of a child to that of their mother, while a paternal DNA test compares the child's DNA to that of their father. This helps determine biological relationships between individuals.
Yes. As long as you have the father's DNA to verify paternity, there is no minimum or maximum age for a paternity test.
To discover who his parents are they would have to have 3 samples of DNA. 1 from the Mom 1 from the Dad and 1 from the child. Without that there is no certainty as to who it could be.
Has paternity been challenged? If the father has publicly acknowledged you as his child, then you may be ok. Get a DNA test anyway. You'll want it if the will is challenged or he died without a will. You will get an equal share by intestacy laws, but you can be written out of a will.