Why is PCR needed?

Related questions

1. What is a PCR test?
2. How long does PCR test results take?
3. How is PCR useful in DNA fingerprinting?
4. What is PCR used for in medicine?
5. How is PCR used to identify bacteria?
6. What does a PCR system do?
7. What is the function of PCR machine?
8. How is PCR used for disease diagnosis?
9. What are steps of PCR?
10. How is PCR used in diagnosis of cancer?

Tags

1. #millions
2. #single
3. #revolutionary
4. #possible
5. #advances
6. #important
7. #often
8. #generate
9. #chain
10. #polymerase
11. #biochemical
12. #strand
13. #biology
14. #inexpensive
15. #considered
16. #reaction
17. #scientific
18. #molecular
19. #copies
20. #field
21. #technology