Who would be the very best person in my family members for a dna check ? Father is lifeless - cremation ? My dads family members doesn’t think I’m his child. I am going to purchase a dna test who would be the very best person to check. My dads mother or my dads brother ? In case you are male, your father's brother as they could just evaluate the Y-chromosomes, which really is a great deal cheaper than comparing all 46 chromosomes. Otherwise, your very best bet is by using the DNA of *both* your dad's parents, as 23 of your 46 chromosomes should come out of their 92. Your grandmother and you ought to share about(!) 11 or 12 chromosomes. Siblings share about(! !) 23, which means you and your uncle should talk about about (! !!) 11 or 12 too. Statistically, regular variation when comparing your DNA to your uncle's is certainly higher than when you compare your DNA to your grandmother's. Due to the lottery-type manner in which chromosomes are passed on, sharing only 8 chromosomes with granny isn't proof that you will be not really her biological granddaughter (and sharing 12 isn't proof you are). Even though it's unlikely to earn the lottery, there generally are people who do...