When you get an autosomal DNA test whether from AncestryDNA, 23andMe or Family Tree DNA, you can use the results to find possible DNA matches.
All genealogical DNA testing services use centiMorgans to estimate (emphasis on ‘estimate’) how close you are with someone else. Depending on the number of centiMorgans across your shared DNA segments they could be close family members such as a parent or grandparent or a relative further away such as a second cousin.
So what exactly is a centiMorgan (abbreviated as cM) and how do you use it to find and analyze DNA matches.
When is the best time to have kids?
For many people it depends on a wide variety of factors including career trajectory, health and culture. But science generally recommends doing it earlier.
For women fertility is obviously a major reason for doing it when younger. There is also the increased risk of complications like ectopic pregnancy, stillbirth and miscarriage.
But it’s not just women who should be worried about getting kids later in life. Men too have a ticking biological clock.
Genealogy testing services like Family Tree DNA and AncestryDNA can only get you so far into the past. Autosomal DNA testing for instance, the most popular type of DNA test, can only trace your ancestry up to your second cousins.
To study the human lineage much father back tens of thousands of years ago researchers have had to use more advanced methods like genome sequencing and restriction mapping.
In 1987 they struck gold.
They analyzed the mitochondrial DNA of 147 people drawn from five different populations around the world.
Mitochondrial DNA is passed down from mother to son and … Read the rest >>
What is the best DNA test? What will a genealogy DNA test tell me? Can I find my relatives using a DNA test? Here are quick answers to common questions on DNA genealogy tests for those who want to trace their ancestry and find family matches.
Yes it can.
DNA testing companies have huge databases (usually with more than a million individual DNA results) with DNA data from different populations around the world.
When you take a DNA test, they will match your DNA sequences against those of the different … Read the rest >>
A decades-long search for the Golden State killer finally led to the arrest of a suspect with the help of an online DNA database. But it raises many questions on how much privacy we are giving up when we use genealogical DNA testing websites like 23andme.com and AncestryDNA.
Police suspect he has raped more than 50 people and killed at least 12. Dozens of bulgaries have also been linked to him. But for over four decades, Joseph James DeAngelo also known as the Golden State Killer, managed to elude investigators.
A break in the case came when one of the … Read the rest >>
Then you’ve come to the right place!
DNA testing services for pets, especially dogs, have become super-popular in the last few years.
Today, there are dozens of companies helping pet owners identify the breeds of their dogs and diagnosing genetic diseases.
While there are many companies offering dog DNA testing today, we are going to focus on the three most popular and highest-rated brands in this guide:
To help you cut … Read the rest >>
The goal of the Genographic Project is to map the ancient genetic history of as many people as possible using a custom DNA test that leverages autosomal, Y-chromosome (paternal) and mitochondrial (maternal) DNA tests.
Unlike “actionable” genealogy tests from FamilyFinder, AncestryDNA and 23AndMe, the objective of Geno2.0 is on understanding your ancient genealogy – not on finding lost relatives or connecting with distant cousins.
Indeed, the Genographic Project is best-in-class at revealing your ethnic makeup and where your ancestors lived 300,000 … Read the rest >>