What are single nucleotide polymorphism (SNP) databases? 2. Are these single nucleotide databases useful for healthcare, or is the Surgeon General’s Family Health History Tool better or a combination of both, in order to get a good idea as to a patient’s health risk factors? 3. Please explain: What if a patient was adopted, or came from another country and had no idea of his/her health history, would your answer to #2 question then change? Explain.