How Are the Genes in The $\beta$ -Globin Locus Different from Each Other?
A)They Use Different Template

question 22

Multiple Choice

How are the genes in the $\beta$ -globin locus different from each other?

• A)They use different template strands for transcription.
• B)They are expressed at different times in development.
• C)They have different evolutionary origins, from different ancestral genes.
• D)They are dispersed on different chromosomes.
• E)Some are expressed in all cells; some are expressed only in red blood cells.

---

Definitions:

Nonsteroidal Antiinflammatory

A class of drugs that reduce pain, decrease fever, prevent blood clots, and in higher doses, decrease inflammation.

Ibuprofen

A nonsteroidal anti-inflammatory drug (NSAID) used to relieve pain, reduce fever, and decrease inflammation.

Aspirin

An over-the-counter medication used to reduce pain, fever, inflammation, and, at low doses, to prevent blood clots.

Gastrointestinal Bleed

Bleeding that occurs within the gastrointestinal tract; can be from the esophagus, stomach, small intestine, or colon.