Imagine That You Are Studying the Control of β-Globin Gene

question 5

Multiple Choice

Imagine that you are studying the control of β-globin gene expression in immature red blood cells (mature red blood cells contain β-globin protein but lack a nucleus and therefore the β-globin gene) .If you deleted a sequence of DNA outside the protein-coding region of the β-globin gene and found that this increased the rate of transcription,the deleted sequence likely functions as a(n) _____.

• A)promoter
• B)promoter-proximal element
• C)enhancer
• D)silencer
• E)any of the above

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Definitions:

Aqueous Layer

The aqueous layer is the water-based layer that forms during the separation of mixtures in liquid-liquid extraction, often distinguishable from organic layers due to its density and solubility properties.

Organic Layer

A portion of soil rich in organic matter, found at the surface, contributing to soil fertility and plant growth.

Organic Solvent

A carbon-based solvent that is capable of dissolving or dispersing one or more other substances.

Strong Acid

An acid that completely dissociates in solution, releasing a high concentration of hydrogen ions.