DNA 101
DNA 101 is your resource for learning about DNA testing, analysis, and, most importantly, how you use the information hidden within genes to live healthier, happier, and longer.

MD · MBA
Founder & CEO, Sequencing.com
Founder of Sequencing and author of Outsmart Your Genes. An early voice in direct-to-consumer genetic testing.
Brandon Colby is a physician-expert in the fields of Genetic Analysis and Personalized Preventive Medicine. He holds an MD from the Mount Sinai School of Medicine, an MBA from Stanford University`s Graduate School of Business, and a BA with Honors in Genetics from the University of Michigan.
Dr. Colby is the author of the book Outsmart Your Genes and has developed numerous technologies that improve the analysis, interpretation, and actionability of genome sequencing data. He is an Affiliate Specialist of the American College of Medical Genetics and Genomics (ACMG), an Associate of the American College of Preventive Medicine (ACPM), and a member of the National Society of Genetic Counselors (NSGC).
Articles by Dr. Brandon Colby, MD are reviewed for accuracy by Sequencing's medical and scientific team. This page is for informational purposes and does not constitute medical advice.
DNA 101 is your resource for learning about DNA testing, analysis, and, most importantly, how you use the information hidden within genes to live healthier, happier, and longer.
Diseases are all different, and they don’t happen through their own specific mechanisms. Some diseases are classified as genetic disorders which are inherited solely through your…
As their name implies, multifactorial diseases, or multifactorial inheritance, are conditions that are caused by multiple factors.1 These can include a wide range of genetic,…

Heredity is not destiny. Genetic testing can help you identify any current or potential health issues associated with your genome so you can live a healthier life.
Genetic counseling offers guidance that can help you make sense of your DNA test results. Consumer genetic tests are wonderful. They can help us learn more about our health, diet,…
Breast cancer is the second most commonly diagnosed cancer of women in the United States, after skin cancer. Men, too, can get breast cancer, although it is predominantly a…
We all lose hair everyday. Under normal circumstances, you can lose anywhere between 50 to 100 strands of hair each day. However, this natural hair loss isn’t typically…
One Genome greatly simplifies the process of using the information contained in your DNA. This proprietary Sequencing.com technology allows you to initiate DNA analysis reports…