Dna test can be proved from grandfather - Page 1

Can any body tell me can we prove dna test from grand father.

I assume you mean parentage??  I think you might be able to rule out some potential parentage with DNA from a grandfather or grandmother but I don't think you can prove parentage with a grandfather or grandmother alone.  The DNA testing for parentage in essence does not "prove" parentage, it just gives the odds and in most cases with good lab procedures and analysis of results the odds of the test being wrong are something like the odds of winning the lottery.  There is always a chance that any biological test can be wrong be it DNA or otherwise if improperly conducted or interpreted.  We now know that some sit in prison because fingerprint tests were interpreted incorrectly and that there may in fact be many fingerprints similar enough to be confused as being the same fingerprint.  DNA evidence has been found to have been incorrectly collected, analyzed, or interpreted in many criminal cases due to sloppy technique or an over zealous lab worker trying to support a DA and the police.  Likewise a lab can clear an accused falsely with corrupted or improperly analyzed DNA evidence.

The question is a non-starter, none of the testing labs will run a DNA test in this manner.  To quickly summarize, the way the tests are run now, you name the sire and dam combos for them to test and they spit out a result of the most likely sire dam pair (BTW, you pay for each tested pair and need to know the most likely sire and dam combos in advance because they won't recombine the "positive parentage results" afterward based on the totality of the submitted test results).  Also, you need to submit a legit pedigree to the breed club along with the DNA, before they will even run a parentage test, so if you have no pedigree, you are dead in the water anyway. 

Note that doesn't mean they cannot do any of what you may be imagining.  They simply will not do it, nor will they ever develop the protocol to do so.  There are a lot of neat things that could be leaned from voluntary DNA submittals and parentage testing, not tied in any way to registration, but its simply not going to happen because none of breed club will share the DNA profile databases with each other, nor will they let the labs run the tests independently, charging a fee directly to the customer, unless the breed club gets to act as a middle man.

Yes,you can,if you have DNA profile of both dogs.

Match will be about 25%..

It´s possible for humans, should be possible for dogs, too.
Do you have access to the samples? I don´t think that the clubs would help...

@Udo and susie, yes, scientifically this scenario is possible.  However, which DNA bank will run a test like this for a client, whom is not submitting it though thier affiliated breed club?  Also which of those companies will run a DNA test that identifies something other than, the standard, sire and dam in the pedigree?  Certainly not Geneseek, MMI, Neogen or GeneRatio.  Also the DNA bank has to have DNA profiles for a grandsire and granddam on file as well.

That´s why I asked for samples. You need to do this privately.

@suzie, no lab will do this with a dog, unless its tied to an existing breed club DNA parentage protocol.  They won't even answer questions directly, they simply refer you back to the breed clubs.

There are enough "free" labs on this earth - it´s all about money.