What do you do with the frozen roots or DNA after it is frozen?

Question: What do you do with the frozen roots or DNA after it is frozen?
- Keywords:
  DNA,
  frozen,
  root
Asked by anon-218619 to Shannah on 17 Jun 2019.
- Shannah Gates answered on 17 Jun 2019:
  
  I use the DNA to check the expression of different plant genes. With the roots I extract plant compounds from them to use them for medicines

Question: What do you do with the frozen roots or DNA after it is frozen?