Can sibling and sibling have baby?

Answer:
Yes, brothers and sisters can have children, but it is illegal in most countries because it increases the risk of genetic defects (birth defects). There are many documented cases of married couples later discovering that they were related by blood.
First answer by ID1657598190. Last edit by Dfoofnik. Contributor trust: 2548 [recommend contributor recommended]. Question popularity: 7 [recommend question].