Hey Mommy, how come little brother has blue eyes and I have brown eyes??
Well Jane, I'm glad you asked. It's because as my child you and your brother get different traits from dad and I, like hair color, or eye color. Your brother inherited your dad's blue eyes and you got my brown eyes.
We are glad. One big genetically similar but not identical family.:)
Then mommy, does that mean little brother will be EXACTLY like dad when he grows up? And be funny and nice too?
No sweetie, behaviors and personality are acquired traits, which means that they're learned not inherited
Okay I understand, I'm so happy we aren't all the exact same. I like being different.