In genetics, what is the importance of the seperation and re-forming of homologous pairs?
This sounds like a homework/coursework question, so I've moved it to the homework forum.
Why don't you start out by describing the sequence of steps in this process, and see if that helps you understand why this is important. If it doesn't help you see it yourself, it will at least help us see if you have all the steps understood correctly before we help you further with this question.
Separate names with a comma.