Max Delbrück Presented the First Evidence That Bacteria Are Capable

question 43

Multiple Choice

Max Delbrück presented the first evidence that bacteria are capable of spontaneous mutation.What is the name of the test that Delbrück used to demonstrate this phenomenon?

• A) fluctuation test
• B) logarithmic test
• C) lag test
• D) prototrophic test
• E) auxotrophic test

---

Definitions:

Net Operating Income

The profit generated from a business's operations after subtracting operating expenses from operating revenues.

Variable Costing

A method of costing that includes only variable manufacturing costs—direct materials, direct labor, and variable manufacturing overhead—in the cost of a unit of product.

Absorption Costing

An accounting method that includes all manufacturing costs - direct labor, direct materials, and overhead - in the cost of a product.

Net Operating Income

A company's revenue minus its operating expenses, not including taxes and interest.