Question

In eukaryotes, multiple genes can be expressed simultaneously by

A. the arrangement of multiple genes into an operon.

B. the binding of a specific transcriptional regulator to several genes.

C. the binding of a mediator complex to several genes at once.

D. a repressor protein binding to multiple operators.

Answer 1

In eukaryotes, multiple genes can be expressed simultaneously by the binding of a specific transcriptional regulator to several genes.

Step-by-step explanation:

In eukaryotes, multiple genes can be expressed simultaneously by the binding of a specific transcriptional regulator to several genes. Unlike prokaryotes, eukaryotes do not have operons where multiple genes are organized together. Instead, each gene is regulated independently. Transcriptional regulators, such as transcription factors, can bind to the regulatory elements near the genes they control and either enhance or inhibit transcription. This allows for precise control of gene expression in response to different signals and conditions.