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

question 42

Multiple Choice

"Thr" refers to a gene that governs a cell's ability to synthesize threonine from inorganic precursors. What does the designation "thr⁺" indicate?

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

---

Definitions:

Short-run Phillips Curve

A representation in economics that shows an inverse relationship between the rate of unemployment and the rate of inflation in the short-term.

Unemployment

The condition wherein people who are able and willing to work and are actively looking for work cannot secure a job.

Contractionary Monetary Policy

A monetary policy strategy used by central banks to reduce inflation and cool an overheated economy by raising interest rates or increasing reserve requirements.

Inflation

The frequency at which the all-encompassing costs of goods and services heighten, eroding financial purchasing capability.