PrfA Protein Is a Global Regulator of Virulence Genes in Listeria,a

question 12

Multiple Choice

PrfA protein is a global regulator of virulence genes in Listeria,a bacterium that can cause severe food poisoning.Below host body temperatures PrfA mRNA exists in a conformation that hides the ribosome binding site.Upon entry into a host and a rise in temperature,hydrogen bonds in the mRNA break,exposing the ribosome binding site.What level of gene regulation is seen here?

• A) changing the DNA sequence
• B) transcription control
• C) translation control
• D) posttranslational control

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Definitions:

Gross Annual Salaries

The total amount earned by an individual in a year before deductions.

Accounting Technicians

Professionals skilled in recording & managing financial transactions and preparing financial statements.

Decrease Of

Refers to the reduction in the amount, quantity, or extent of something.

Percent Less

A term used to indicate a reduction or discount applied to a price or value, expressed as a percentage of the original amount.