A basic DNA kinship test can be done, which compares two people on a small set of autosomal genetic markers, called alleles. An allele is a form of a DNA sequence of a particular gene. A person inherits alleles randomly from both parents. Basically, by testing to see how many alleles two people share in common, a conclusion of high or low probablity of relatedness can be drawn. Some values are more common to match with people, while others are not. The rarer the alleles that match up, the more likely a person is related to the comparison.
Therefore, if you share a lot of rare alleles with a person, there is a high probability you two are related.
I think this is related... No two people on earth can have the same DNA (genetics) so they wont be the same although they will be simalar though it is possiable to distinguish brother from sister, mother from daughter etc.
A person can have a DNA test done to see if someone is their half brother. The DNA would have to be taken from both half brothers and both parents or the parent they both believe is their biological parent.
The cell disappears...
DNA is found in the nucleus of cells in humans. It is also present in small amounts in mitochondria, which are known as the powerhouse of the cell.
A chromosome in humans is made up of one long DNA molecule. This DNA molecule is double-stranded and contains thousands of genes.
you could have a paternity test. Answer Testing using DNA from the father's father.
It is not recommende for brother and sister to breed because they have the same DNA and can result in issues with the babies(kind of like humans). However this may sound strange, but it is ok to breed mother to son and father to daughter.
DNA testing can determine if your brother, sister, father or mother are your true biological ones.
Get a DNA test, the sooner the better.
DNA testing will tell if it came from an animal.
It is impossible for humans to have wolf DNA.
Chimpanzees have DNA that is closest to humans.
DNA check at a hosbitle. There's no other way, unless you ask. Kind of weird to find out your cousin is actually your sister, guess you shouldn't have made out with her. ;)
If DNA tests tell you that the baby is your brother, than it's your brother. There is an incredible amount of variation in DNA, so it should not be unexpected if a child does not look similar to what you would expect.
Gorillas share about 98 of their DNA with humans.
Humans share the most DNA with chimpanzees.
A detailed medical examination would tell if your sister has ever been pregnant or not. If she says she hasn't got any kids, that should pretty much settle it. Or get the money together for DNA testing of you and her. That'll tell.