Question

14.3 gene regulation and expression
learning objectives

• explain how prokaryotic genes are regulated.
• describe how genes are regulated in eukaryotic cells.
• identify what controls the development of cells and tissues in multicellular organisms.

prokaryotic gene regulation

• __________ ________ in prokaryotes regulate genes by controlling __________.
• one of the keys to gene transcription in bacteria is the organization of genes into ____________.
• an operon is a group of genes that are ____________ together.
• the genes in an operon usually have related functions.

Explanation:

1. Prokaryotes primarily regulate gene expression at the transcription stage, with operons as the key structure.
2. Bacterial genes are organized into operons, which are coordinated groups of functionally related genes.
3. Operons consist of genes that are transcribed together as a single mRNA molecule.

Answer:

• Prokaryotic Gene Regulation
• Cells in prokaryotes regulate genes by controlling transcription
• One of the keys to gene transcription in bacteria is the organization of genes into operons
• An operon is a group of genes that are transcribed together.
• The genes in an operon usually have related functions.