Repetitive DNA

Okay, kiddo. So you know how you have different parts of your body like your eyes, nose, ears and fingers, right? Similarly, every living thing like plants and animals also have different parts in their body, but those parts are made up of tiny things called cells. Now, inside those cells, there is something called DNA which carries a lot of information on how to build and maintain those body parts, kinda like a blueprint. However, some part of that DNA is a bit different.

You see, some parts of the DNA sequence keep repeating themselves over and over again, like a song that you keep singing again and again. They are called repetitive DNA. Imagine someone singing "la la la" again and again, but instead of a person, it's the DNA doing that.

Now, these repetitive DNA sequences often don't have any specific function or job to do, unlike other DNA that tells the body how to make proteins, which in turn do all sorts of different jobs in the body. Scientists used to think that these repetitive sequences were just junk that didn't matter to the body, like a toy that is broken and doesn't work anymore. But now they think that some of these repetitive DNA might play a role in things like keeping the chromosomes stable, which helps keep the body healthy, cool right?

Does that make sense, little one?