Why is there genetic variation among siblings beyond gender?

2.46K views

My impression is that genetic information in eggs and sperm are consistent per individual. If so, what causes the combination of those two sources to vary so greatly? Some brothers or sisters are total opposites of each other despite the same “ingredients”. How does that happen genetically? Why would only one of a couples children inherit an expressive genetic disease? Etc.

In: Biology

4 Answers

Anonymous 0 Comments

because you have a mother *and* a father.
You and your sibling will pick their genetic information from that pool, but this leaves a lot of freeroom and the individual pick will be different.

You are viewing 1 out of 4 answers, click here to view all answers.