Category Archives for Blog

Older fathers pass on more mutations & a 23andMe health review will not show these potential mutations

Why Men Should Father Children Earlier to Avoid Passing on Genetic Mutations

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.

Scientists already know that older fathers have a higher risk of bearing children with psychiatric disorders such as schizophrenia, … Read the rest >>

Who are the genetic Adam and Eve - can't be traced via Family Tree DNA

Tracing Human Geneology: Who Are The Genetic Adam and Eve?

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 and other DNA geneology FAQs

Common Questions on DNA Genealogy Testing (FAQs for Beginners)

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.

Click on the + sign to expand an answer.

Can a DNA test help me discover my ethnicity?
Read the rest >>
Genetic privacy on 23andme.com and other sites

An Online DNA Database Helped Capture the Golden State Killer. Should You Be Worried About the Privacy of your DNA Data?

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 >>

Best best dna test y-dna vs. mtDNA vs. autosomal DNA

What’s The Difference? Y-DNA vs. mtDNA vs. Autosomal DNA Explained (+ Tips for Choosing the Right One)

One of the most important things to check when looking for a good DNA ancestry testing service is the type of DNA they actually test.  It makes a huge difference in the type and accuracy of information you can learn from the test.

There are 3 basic types of DNA tested by ancestry DNA tests today:

  1. paternal DNA (Y-DNA)
  2. maternal DNA (mtDNA) and,
  3. autosomal DNA (atDNA)

The right DNA test for you depends on the kind of information you want to glean from your test.

Let’s look at each type of test in a more detail – and the … Read the rest >>