Why Did the Researchers Conduct Serial Transfers in the Experiment

question 35

Multiple Choice

Why did the researchers conduct serial transfers in the experiment illustrated in the figure?

• A) Each serial transfer decreased the population size so that genetic drift could occur.
• B) Each serial transfer was necessary to reintroduce RNA into the system.
• C) Because the experiment took place in a lab, serial transfers were necessary so that the researchers could go home at night.
• D) Each serial transfer is equivalent to a generation and thus provided an opportunity to study natural selection over time.

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Definitions:

Variable Overhead Spending Variance

The difference between the actual variable overhead costs incurred and the expected (or budgeted) costs, based on the actual level of production activity.

Standard Costing System

A costing method that assigns expected costs to products to assess performance by comparing these costs with the actual costs incurred.

Direct Labour Hours

The total hours worked by employees to manufacture a product, directly involved in the production process and often used to allocate manufacturing overhead.

Standard Costs

Predetermined or estimated costs used to measure the performance of a company by comparing them with actual costs.