Question

The function of an operator is to

Select one:
a. control the process of transcription within the nucleus.
b. regulate access of RNA polymerase to specific genes.
c. turn on and off the molecules of tRNA.
d. generate amino acids for protein synthesis.

Answer 1

The function of an operator is to regulate access of RNA polymerase to specific genes, controlling the transcription process.

Step-by-step explanation:

The function of an operator is to regulate access of RNA polymerase to specific genes. Operators are part of the regulatory system in prokaryotic cells and play a crucial role in gene expression. They control transcription by providing a binding site for repressor or activator proteins, which, in turn, affects whether RNA polymerase can bind to the promoter of a gene and initiate transcription. Operators are not involved in the control of tRNA, nor do they generate amino acids for protein synthesis directly. Instead, they are essential for ensuring the proper regulation of protein synthesis by controlling the initial step of gene expression.