Question

in prokaryotic organisms, how is gene regulation mainly controlled?
through transcription
through dna replication
through translation

Explanation:

Prokaryotic organisms mainly control gene regulation at the transcription level. This is because it is more energy - efficient for them to regulate gene expression early in the process. Transcription is the first step in gene expression (DNA to RNA). By regulating transcription, prokaryotes can quickly respond to environmental changes. For example, in the lac operon (a well - studied prokaryotic gene regulation system), the presence or absence of lactose (an environmental signal) controls the transcription of genes related to lactose metabolism. DNA replication is mainly for cell division and not the main mode of gene regulation. Translation (RNA to protein) is a later step in gene expression and is less commonly the main regulatory point in prokaryotes compared to transcription.

Answer:

through transcription