Barbara McClintock

Hello! My name is Barbara McClintock. I was born on June 16th, 1902. When I was a little girl, I loved exploring the world around me. I was very curious and enjoyed figuring things out all on my own. I was always asking my parents, "Why does this work?" or "Why is the sky blue?" Learning new things was my favorite hobby, and I was so excited when I was old enough to go to school. I couldn't wait to learn about everything, from how plants grow to how stars shine. My curiosity was like a little engine inside me that never stopped running.

When I grew up, I went to a big school called Cornell University in 1919. I decided to study plants because I found them so interesting. Of all the plants in the world, my very favorite was maize, which you probably know by its other name: corn! I was fascinated by the corn cobs and their colorful kernels. Some were yellow, some were red, and some were even spotted. I wanted to understand the secret instructions inside each plant that made it special. I knew that if I looked closely enough, the corn could tell me its secrets.

To understand those secrets, I had to learn about something called genes. You can think of genes as being like a recipe book for every living thing. They tell a plant if it should be tall or short, or what color its corn kernels should be. Starting in the 1940s, I spent many, many years in my laboratory looking at corn cells through a powerful microscope. Day after day, I watched them very carefully. One day, I noticed something amazing that no one had ever seen before. I saw that some of the genes weren't stuck in one place in the recipe book. They could move around! It was as if they could hop from one page to another, like a frog jumping on a lily pad. I called them "jumping genes." This was a brand new idea, and at first, some other scientists didn't believe me. But I had seen it with my own eyes, and I knew my discovery was important.

Many years later, other scientists built better and stronger tools. When they looked at cells, they saw that I was right all along! Genes really could jump. In 1983, I received a very special award for my work called the Nobel Prize. It made me so happy to know that my discovery was finally understood by everyone. I lived to be 90 years old, and my work with 'jumping genes' helps scientists today understand so much about plants, animals, and people. I hope you always stay curious and trust your own amazing discoveries!