When Using LacZ as a Reporter Gene, Researchers Add X-Gal

question 75

Multiple Choice

When using lacZ as a reporter gene, researchers add X-Gal to the substrate.What would happen if they didn't?

• A) The transformed cells would die.
• B) Untransformed cells would survive.
• C)  -galactosidase would not be produced.
• D)  -galactosidase would be inactivated.
• E) One could not easily see which cells had  -galactosidase.

---

Definitions:

Imported Oil

Oil that is brought into a country from abroad for use in domestic markets, often subject to tariffs and trade agreements.

Queuing

The process of people or items lining up in a sequence to await their turn for service or processing.

Nonprice Rationing

The allocation of goods among buyers using criteria other than the price, often seen in situations of shortage like during wartime or in the case of rationed healthcare.

World Price

The international market price for a given good, influenced by global supply and demand factors.