DNA structure is really important in how we inherit traits from our parents. Let's break it down in a simpler way:
Double Helix Shape: DNA looks like a twisted ladder. This shape helps the bases (A pairs with T, and C pairs with G) fit together perfectly. This is super important when our cells copy DNA as they divide and grow.
Genes and Traits: Genes are pieces of DNA that decide our traits, like the color of our eyes or how tall we are. Each parent gives us half of their DNA, so our traits come from a mix of both mom and dad's genes.
Variation and Mutation: Sometimes, DNA can change a little bit, which we call mutations. These changes can create different traits that might be passed down to our kids. This is what makes each person special and unique.
Recessive vs. Dominant Genes: Some traits are controlled by dominant genes, which are stronger than recessive genes. For example, if you inherit a dominant gene for brown eyes from one parent, you'll probably have brown eyes, even if the other parent has a recessive gene for blue eyes.
This amazing way that DNA works helps explain how we inherit traits from our parents every day!
DNA structure is really important in how we inherit traits from our parents. Let's break it down in a simpler way:
Double Helix Shape: DNA looks like a twisted ladder. This shape helps the bases (A pairs with T, and C pairs with G) fit together perfectly. This is super important when our cells copy DNA as they divide and grow.
Genes and Traits: Genes are pieces of DNA that decide our traits, like the color of our eyes or how tall we are. Each parent gives us half of their DNA, so our traits come from a mix of both mom and dad's genes.
Variation and Mutation: Sometimes, DNA can change a little bit, which we call mutations. These changes can create different traits that might be passed down to our kids. This is what makes each person special and unique.
Recessive vs. Dominant Genes: Some traits are controlled by dominant genes, which are stronger than recessive genes. For example, if you inherit a dominant gene for brown eyes from one parent, you'll probably have brown eyes, even if the other parent has a recessive gene for blue eyes.
This amazing way that DNA works helps explain how we inherit traits from our parents every day!