This chapter discusses the discovery of genetic materials from the early 1900s. Frederick Griffith discovered that bacteria could transform from one type to another. Later, Oswald Avery showed that DNA was the molecule responsible for transforming bacteria. Further experiments by Alfred Hershey and Martha Chase provided more evidence that DNA, not protein, was the genetic material of viruses and living organisms.

1. Chapter 8-1
Audio Journey
by Jinho, Kelly, Kevin, Max

2. Genetic
Materials
?

3. Early
1900s

4. Frederick
Griffith

5. Oswald Avery

6. Alfred
Hershey
and Martha
Chase