What is a haplotype? What is a haplogroup?
Your DNA signature is shown as a series of numbers (12 numbers, 25 numbers, 37 numbers or 67 numbers) depending upon the size of the test ordered. This string of numbers also defines your haplotype. Based on a comparison of this string of numbers to all the other signatures in the database you will be assigned to a haplogroup. This haplogroup defines the branch of the ancient ancestral tree of life that you are descended from.