Answer:
1. A cross between two closely related organisms could relate in major birth defects such as a missing chromosome or extra chromosome.
2. An advantage for breeding closely related organisms could be a to make a clone, such as the sheep experiment . This could lead to scientists finding a way to create DNA to help cancer patients.
Step-by-step explanation:
the second answer is really an opinion-based answer and could favor either side. That is just my opinion on the question.