Identifying the Substance of Genes

This scientist(s) found a "transforming principle" that changed harmless bacteria into harmful bacteria

• Mendel
• Avery
• Chargraff
• Griffith

The scientist(s) who finally figured out the structure of DNA

• Avery
• Griffith
• Hershey & Chase
• Watson & Crick

The scientist(s) who settled the debate about whether it was proteins or DNA that was the genetic material of the cell

• Avery
• Hershey & Chase
• Watson & Crick
• Griffith

The scientist(s) who discovered dominant and recessive traits

• Mendel
• Avery
• Griffith
• Watson & Crick

Scientist(s) who used chemical analysis to show that the genetic material in bacteria was DNA

• Griffith
• Hershey & Chase
• Mendel
• Avery

In the early 1900s, most scientists thought it was _____________ that carried traits form parent to offspring. 

• Carbohydrates
• Lipids
• Proteins
• DNA

This scientist(s) conducted experiments that involved injecting mice with S bacteria and R bacteria.

• Avery
• Griffith
• Watson & Crick
• Hershey & Chase

The first scientist to perform multiple tests on the transforming principle, to determine if it was DNA or protein

• Griffith
• Chargraff
• Avery
• Hershey

Avery added an enzyme known to break down proteins to his extract, and saw that the bacteria were ____________________

• still transformed
• not transformed
• all killed
• all sick

Avery added an enzyme known to break down DNA to his extract, and saw that the bacteria were __________________

• still transformed 
• not transformed
• all sick
• all killed