5 Disorders of the Nervous System.
(i need it ASAP)
PLSSS​

1.)Parkinson's disease 2.)Multiple sclerosis 3.)Alzheimer's disease 4.)Amyotrophic lateral sclerosis 5.)Huntington's disease

Please let me know if it's correct.

the answer is a or when it says crossing over

answer; i believe the correct answer is (replication is not conservative);