A Strain of E

question 42

Multiple Choice

A strain of E. coli is unable to use the UV repair pathway because of an apparent absence of DNA helicase activity. Which UV repair gene is likely mutated in this strain?

• A) uvr- C
• B) uvr- B
• C) pol I
• D) uvr- D
• E) uvr- A

---

Definitions:

Lien

A legal right or claim against a property as security for payment of a debt or obligation.

Foreclosure

The legal process by which a lender or creditor takes control of a property, evicts the homeowner, and sells the home after the homeowner fails to make full principal and interest payments on a loan.

Contractor

An individual or company hired to perform specific tasks or services, often related to construction or renovation, under a contract agreement.

Homeowner

An individual who owns a residential property where they typically reside, responsible for maintaining the property and fulfilling any related legal obligations.