Researchers Found E

question 24

Multiple Choice

Researchers found E. coli that had mutation rates 100 times higher than normal. What is a possible explanation for these results?

• A) The proofreading mechanism of DNA polymerase was not working properly.
• B) There were one or more mismatches in the RNA primer.
• C) The DNA polymerase was unable to add bases to the 3' end of the growing nucleic acid chain.
• D) The single- stranded binding proteins were malfunctioning.

---

Definitions:

Product Cost

The total cost incurred to create a product, typically including direct labor, materials, and overhead expenses.

Period Cost

Costs that are expensed in the period they are incurred and are not directly tied to inventory or production, such as administrative expenses.

Factory

A building or set of buildings equipped with machinery for manufacturing or producing goods.

Cupcake Mix

A pre-prepared blend of ingredients used for baking cupcakes, requiring only the addition of a few wet ingredients.