"Leu" Refers to a Gene That Governs a Cell's Ability

question 87

Multiple Choice

"Leu" refers to a gene that governs a cell's ability to synthesize leucine from inorganic precursors. What does the designation "leu^-" indicate?

• A) that the bacterium is biologically inactive
• B) that the allele is the mutant allele
• C) that the bacterium is biologically active
• D) that the allele is normal (i.e., wild type)

---

Definitions:

Welfare Benefits

Government-provided support to individuals or families, especially those with low incomes, in the form of financial aid or services.

Gross Private Domestic Investment

The total capital investment in an economy by private sector entities, excluding government spending.

Durable Goods

Goods not for immediate consumption that can be used over a period of time, such as appliances, cars, and furniture.

Business Inventories

The stocks of goods and materials that firms hold for the purpose of sale or input into production, often used to meet consumer demand or continue production.