A Sample of the Same DNA Is Placed into Each

question 30

Multiple Choice

A sample of the same DNA is placed into each of two test tubes.Each tube is treated with a restriction enzyme,and the resulting fragments are separated by gel electrophoresis,producing the gel shown in the following figure.Which of the following explains why the pattern of DNA fragments differs in these two samples?

• A) Different restriction enzymes must have been used in the different tubes.
• B) One tube was heated, but the other tube was not.
• C) Ligase was added to one of the tubes but not the other.
• D) The restriction enzyme added to the tubes cut DNA at more than one sequence.

---

Definitions:

Export Markets

Countries or regions where goods and services are sold abroad, outside the producing country's borders.

Penetration Pricing Strategy

A strategy where a company sets the price of a product very low to get customers to try it.

Market Share

The portion of a market controlled by a particular company or product, often expressed as a percentage of total sales in that market.

Skimming Pricing Strategy

A pricing approach where a relatively high price is set for a new product or service at its launch to maximize profitability before aiming at more price-sensitive customers.