Mouse Mutations Can Affect an Animal's Appetite and Eating Habits

question 13

Multiple Choice

Mouse mutations can affect an animal's appetite and eating habits.The ob gene codes for a satiety factor,the hormone leptin.The db gene product,the leptin receptor,is required to respond to the satiety factor.
-Leptin is a product of adipose cells.Therefore,a very obese mouse would be expected to have

• A)increased gene expression of ob and decreased expression of db.
• B)increased gene expression of db and decreased expression of ob.
• C)decreased transcription of both ob and db.
• D)mutation of ob or db.
• E)same levels of transcription and non-obese mice

---

Definitions:

Available-for-Sale Securities

Financial assets intended to be sold before they mature, not classified as held-to-maturity or trading securities.

Held-to-Maturity Securities

Financial assets purchased with the intention of holding them until they mature; commonly bonds or other debt securities.

Dividend Yield

The ratio of a company's annual dividend payments to its share price, representing the return on investment a shareholder receives from dividends alone.

Preferred Stock

A type of stock that gives shareholders preference over common stockholders in the distribution of dividends and assets upon liquidation.