Which of the Following Factors Was Probably Most Significant in Putting

question 53

Multiple Choice

Which of the following factors was probably most significant in putting an end to the designer jeans fad?

• A) Prices got so high that people stopped buying designer jeans.
• B) Producers failed to advertise enough to promote this new product effectively.
• C) So many consumers bought designer jeans that they lost their uniqueness.
• D) The quality of the product declined as more firms entered the market.
• E) Supply decreased because of the energy crisis.

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Definitions:

Lactose Repressor

The lactose repressor is a protein that binds to the promoter region of the lactose operon in bacteria, regulating the metabolism of lactose by inhibiting the transcription of lactose-utilizing genes.

Transcription

The process in which the DNA sequence in a gene is copied into mRNA, serving as the first step in gene expression.

Lactose Operon

A gene regulatory mechanism in bacteria that allows the cells to adapt to the presence of lactose, enabling the digestion of this sugar when it is available.

Negative Control

A genetic control system in which a regulatory protein binds to DNA, turning off transcription of a gene. Compare with positive control.