We usually abbreviate the word centimorgan like this: cM.Īs you examine your first five DNA matches, you will want to look for the following information on each match, even if you already know how the match is related to you: I used percentages for this example, but typically genetic genealogists (like me and you!) will use the term “centimorgans” to discuss the amount of DNA that two people share. As our relationships grow more distant, so does the amount of DNA that we share.įor example, you will share about 50% of your DNA with either of your parents, but only about 3% with a second cousin. We share most DNA with our closest relatives.
Generally speaking, the people who are at the top of your DNA match list are the most closely related to you, since our match lists are usually sorted in a way that shows the people who share the most DNA with us at the top of the list. The first thing that you will want to do when you open your DNA match list it to examine the first five or so DNA matches. Step One: Examine your first five DNA matches Situations involving identical twins are just about the only exception to this “rule”. The only relationship that is almost always estimated correctly is the parent/child relationship – so if you see this on your list, it is just about certain that this person is a parent or child to you. Your testing company uses the amount of shared DNA to make an estimate, since there are ranges of shared DNA typically seen for each relationship type. One of the most important bits of information that you need to have when you first open up your DNA match list is that your DNA testing company will estimate your relationship with each match, but you won’t know exactly how you are related until you really start digging into your family tree, using your amount of shared DNA as a guide. This post is written for people who tested with any of the major testing companies, but occasionally I might mention a feature that is available with a specific company in order to demonstrate a technique.
280 people that my dna matches how to#
The first, How to Analyze Your DNA Results: Focus on Ethnicity Estimate, is an in-depth explanation of strategies you can use to learn the most from your ethnicity estimate.īelow, I’ll discuss some strategies that you can use to learn to analyze your DNA results – with a focus on your DNA match list. This is the second post in a two-post series. In my own DNA match list, I have found close cousins who were previously unknown to me, proof of who my great-great grandparents were on one of my mother’s lines of the family, as well as evidence of the migrations my ancestors and their descendants took around the world as they established their families in other countries – and much, much more. Assist you in better understanding your ethnicity estimate.Help adoptees and others locate their biological parents and other close relatives.Provide evidence that your family tree might have a few errors (many do!).Verify that your family tree is correct.Yet, spending some time analyzing your DNA match list can help you: It can be overwhelming to look at a list of people who are definitely genetically related to you in some way, yet not know who those people are. Additionally, many people don’t know that they will get a DNA match list, or really understand what that means. It’s probably fair to say that most people first do their DNA test to get their ethnicity estimates. In this post, I’ll teach you how to analyze your DNA results using your DNA match list. Maybe you recognize some of the names from the top matches, and everything seems to make sense. You got your DNA results back, and you’ve taken a look through your DNA matches.
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