sex chromosomes

Back to School: Sex Chromosomes Quiz Results

September 26, 2012
The 23rd Chromosome This month we’ve run a series of quizzes for the back-to-school season. Here’s are the answers to our third and final quiz. Congratulations to Toni K., who...
Read More

Back to School: All About Sex… Chromosomes

September 19, 2012
We know you’ve been studying hard at 23andMe U., but you’ve still got one more quiz to complete. This one hinges on some of the genetic differences between men and...
Read More

Genetics 101 Quiz Extended

September 10, 2012
Attention all students! We’re extending the Genetics 101 quiz through Sunday, September 16th to give everyone plenty of time to brush up on their genetics and earn a chance to...
Read More

Back-to-School: Genetics 101

September 07, 2012
Our Hero Gregor Mendel, an Austrian monk and biologist, worked out the pattern of inheritance of various traits. He showed that a “dominant” trait is one that always shows up...
Read More

Ancestry at 23andMe: What Can You Learn?

September 16, 2010
This series on Ancestry at 23andMe offers an introduction to what you can learn about your ancestry through genetic testing.
Read More

The Disappearing Y: New Study Uncovers the History and Future of the Y Chromosome

July 20, 2009
It may be you’ve heard a rumor that males are on the brink of extinction. Whatever you may think of that prospect, the rumor is false. But over the past...
Read More