How Did Alfred Hershey and Martha Chase Contribute to Our

question 69

Multiple Choice

How did Alfred Hershey and Martha Chase contribute to our understanding of DNA?

• A)Used X-ray diffraction to examine the structure of DNA
• B)Determined that DNA contains four different nitrogenous bases
• C)Found that "the transforming principle" is destroyed by enzymes that hydrolyze DNA
• D)Found that the phosphorus-containing components are the genetic material of phages
• E)Discovered "the transforming principle" that could genetically alter bacteria

---

Definitions:

Labor Force

The total number of people who are eligible, willing, and able to work, including both the employed and those actively seeking employment.

Adult Population

The segment of the population that is of working age and eligible for employment, typically considered 18 years and older.

Discouraged Worker

An individual who is not actively looking for employment due to believing that no jobs are available for them.

Cyclical Unemployment

Unemployment that fluctuates with the business cycle, increasing during recessions and decreasing during expansions.