Answer:
It can cause many birth deffects, health issues, and mutations
Step-by-step explanation:
there can be an increase in birth size and a variety of defects in vital organs, such as the liver, brain and heart.
weird fact- Incest families give there children many birth deffects because they are made of the same genes instead of havng opposite or unrelated genes. I know gross right.
Hope this helps. :)