What is heredity?

Heredity is how traits from parents pass down to their children.

Imagine you have a favorite pair of socks that are really soft and cozy, your mom has those same socks, and so does your grandma. That’s heredity in action! Just like your family’s favorite socks stay in the family, traits like eye color, hair type, or even how tall you grow can be passed from one generation to the next.

Think of heredity like a recipe that each parent brings to the table. If both parents love chocolate chip cookies, their child is more likely to also enjoy them, just like how your family might all prefer the same kind of cookie or ice cream.

But sometimes, you get a mix! One parent might bring a love for vanilla, and the other for chocolate, so maybe you end up loving both. That’s how traits can combine in fun new ways.

Inside each person’s body are tiny instructions called genes, which help decide what traits we have. When parents have a baby, they pass some of these instructions on to the child. That's why kids often look like their mom or dad, they're getting parts of those special instructions!