The State of Rhode Island and Providence Plantations, more commonly referred to as Rhode Island, is a smallest state in the New England region of the United States. It is the smallest U.S. state by area.
If the DNA patterns between mother, child, and the alleged father match on every DNA probe, the likelihood of paternity is 99.9 percent. To conduct DNA testing, either a blood test known as Restriction Fragment Length Polymorphism (RFLP) or a procedure called a Buccal scrap is used.
This is how forensics scientists identify a person based on DNA evidence, and also how paternity can be determined (a child will have combination of SNPs from mom and dad) SNPs can also tell you if someone is prone to a certain genetic disease in some cases.