DNA

“Y” So Different?

Apr 19, 2018 https://www.flickr.com/photos/nihgov/28189336441

By Rachel Cherney While a baby is developing, it is by default, female. However, with the presence of the Y sex chromosome, the developing female will be overridden and instead develop a male reproductive system, thus becoming male. Males have an X and a Y sex chromosome, whereas females have two X chromosomes. Millions of […]

From the Archives: Genes and Giants in Ireland

Mar 22, 2018

As many of us just celebrated St. Patrick’s Day and all things Irish, we thought it would be a good time to revisit an Irish legend and its unexpected connection to modern day genetics. Originally published on October 27, 2016. By Michelle Engle Genetics is usually advertised as a science that impacts the future – […]

How to Copy DNA: The Invention of the Polymerase Chain Reaction

Jan 11, 2018 https://commons.wikimedia.org/wiki/File:Grand_Prismatic_Spring,_Yellowstone_National_Park_(3646969937).jpg https://commons.wikimedia.org/wiki/Thermus_aquaticus

By Matt Niederhuber There’s a good chance you’ve heard about DNA testing before, probably on a crime TV show or on the news. Sometimes, DNA testing is how the police identify suspects, but it has also helped prove the innocence of many people who have been falsely imprisoned. I bring up DNA testing because I […]

The Secrets of Our DNA

Oct 19, 2017 https://www.flickr.com/photos/mitopencourseware/4814933459

By Eva Vitucci The human body is composed of trillions of cells – these cells make up your skin, hair, lungs, and even your toenails. Inside each of these cells are specialized instructions that are essential for life, otherwise known as deoxyribonucleic acid, or your DNA. But what exactly is DNA? Quite simply, your DNA […]

Thank Mom for Your Mitochondria

May 27, 2017 https://en.wikipedia.org/wiki/Mitochondrion

By Michelle Engle We inherit ½ of our DNA from our mothers, but that’s not the only thing we inherit from them. Mitochondria are organelles in the cell that are responsible for making energy used to create proteins and respond to the environment. Mitochondria are passed from mother to baby upon fertilization of the egg. […]

Your ancestors had better teeth than you do, so go brush your teeth

Mar 15, 2017

By Lauriel Earley If you’ve ever been to the dentist, you’ll know that most of your time there is spent having plaque cleaned off your teeth. Have you ever given much thought as to what plaque is? If not, then be prepared to be a little grossed out. Plaque is a ‘biofilm’, which means it’s […]

Ancient virus genes make male mice extra muscular

Dec 05, 2016

By Lauriel Earley You’ve probably already heard that you may have more bacterial cells than human cells in your body*, but did you know that you’re also part virus? About 5-8% of your genome is from viruses that integrated into the DNA of your ancestors. These pieces of virus that are in your genome are called […]

Genes and Giants in Ireland

Oct 27, 2016

By Michelle Engle Genetics is usually advertised as a science that impacts the future – the future of healthcare, the future of cancer therapy, etc. But it’s also the biological science that most closely links us to the past, through the DNA passed down from our ancestors. In Ireland, where the past is filled with […]

Epigenetics – more than what you’re born with

Oct 06, 2016

By Mike Pablo It’s well-known that children can inherit features from their parents. Eye color, hair color, and height are just some characteristics that can be passed down from parent to child. If you’ve had a class on DNA, you’ve likely heard about Mendelian inheritance, originally proposed in 1865 by Gregor Johann Mendel. Mendelian inheritance is […]