The bases pair with each other to create a string of DNA. These chromosomes contain over 3 billion pairs of nucleotides, which are the building blocks of DNA. How many DNA segments are there in humans?Īll human beings have 22 pairs of autosomal chromosomes, and another pair of sex chromosomes: 23 pairs in all. When a person with a significant amount of DNA that is identical to yours is found, that can indicate that you have a common ancestor.īut how does this process work? How do DNA testing services like MyHeritage get from a saliva sample to a list of people who might be your relatives? In this article, we’ll explore how DNA Matching works. DNA Matching is the process of sequencing your DNA and comparing it to the DNA of other people in a database.
