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Can two blue-eyed parents have a brown-eyed child? Take the quiz!

Jan. 23, 2012

While basic genetics education teaches us that parents carrying recessive traits like blue eyes should expect to produce blue-eyed children, modern science has proven that genetics in the real world is not quite so clear cut. Take our genetics quiz!

Why do you have an appendix? Take the quiz!

Jan. 23, 2012

Many believe that the appendix is just another in a long line of outdated body parts that have been rendered useless thanks to evolution. Try this quiz to see how much you know about evolution and its effect on humans and animals throughout the ages.

What's the genetic makeup of multiples? Take the quiz!

Nov. 28, 2011

With more multiples comes increased fascination with the science and genetics behind babies who appear virtually identical. Think you know all there is to know about the genetic makeup of multiples? Take our quiz to find out!

Do you carry a smart gene? Take the quiz!

Nov. 14, 2011

Is intelligence inherited? That's a question that scientists have been asking for centuries. And if you can only be as smart as your genes allow, does it matter how much you study and apply yourself? So … is braininess nature or nurture?

Is there an elite athlete in you? Take the quiz!

Oct. 10, 2011

It takes more than just practice to become an elite athlete. You also need to have the right attitude and the right body for it. Do you think you have what it takes to become an elite athlete? Take the quiz to find out!

Can you make a designer baby? Take the quiz!

Oct. 3, 2011

If you were going to design your perfect baby, what color hair and eyes would you choose? How close are scientists to producing "designer babies?" Take this quiz to see what you know about this contentious topic.

When does life begin? Take the conception quiz!

Sep. 20, 2011

There's no easy answer to when life begins, and defining human life is one of the most controversial topics in America today. Take this quiz about the science and debate behind when life begins and ends.

10 Most Serious Hereditary Conditions

Sep. 19, 2011

The complexity of the human body seems to be matched only by the number of things that can go wrong with it, and some diseases are unavoidable for those who get them because they're encoded in the genome. What are some serious hereditary diseases?

Can you tell fact from fiction? Take the hereditary diseases quiz.

Aug. 25, 2011

Hereditary diseases are built into the very blueprints of your body. Take our quiz to see what you know about the medical conditions that can come straight from your DNA.

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Episode 11: Can you live forever?