Choose one of the genetic theories in chapter?2?and briefly summarize.??2. Read the NCBI Chapter on Etiology -?https://www.ncbi.nlm.nih.gov/books/NBK232972/Links to an external site.?an

1. Choose one of the genetic theories in chapter 2 and briefly summarize.

2. Read the NCBI Chapter on Etiology - https://www.ncbi.nlm.nih.gov/books/NBK232972/Links to an external site. and explain how this supplemented your knowledge on etiology of substance.