9
AssignmentMultiple Choice

Protein Synthesis

Question 9 • First Semester Biology

What is the purpose of operons in protein synthesis?

Answer
A
They transfer the mRNA to the ribosomes for protein production.
B
They unzip the DNA molecule at the beginning of transcription.
C
They contain promoters and operators that determine when a gene is transcribed.

Explanation

An operon is a group of genes regulated together, with control regions such as a promoter and operator. These regions help determine whether transcription of the genes takes place. Therefore, choice C is correct; operons do not transfer mRNA to ribosomes or unzip DNA to start transcription.

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