Analyzing DNA can tell us what colour a person’s eyes are.
(Shutterstock)
Our DNA contains the information that determines the colour of our eyes.
The sun’s rays often feel good on your skin, but can cause serious damage.
Maksim Chernyshev/EyeEm via Getty Images
Our ancient ancestors didn’t have clothes or houses – but that constant exposure to the sun helped their skin protect itself from the worst sun damage.
Genetic analysis can reveal how hair gets its colour.
(Shutterstock)
Analyzing the genes that determine hair colour can shed light on other conditions that are affected by melanin production, like vitiligo.