AP Biology Gene Regulation

Front

What is differentiation?

Back

The process by which cells specialize to perform specific functions during embryonic development.

Front

At which step does most gene regulation occur?

Back

Transcription.

Front

What is the role of homeobox genes in cell differentiation?

Back

They code for transcription factors that activate other genes important in cell development and differentiation.

Front

What is the function of a promoter in gene regulation?

Back

It allows a gene to be transcribed.

Front

What effect does lactose have on the operon?

Back

It allows the repressor to unbind from the operator, enabling transcription.

Front

What is gene regulation?

Back

The process of turning genes on or off to control the production of proteins.

Front

What are transcription factors?

Back

Proteins that help regulate the transcription of specific genes by binding to nearby DNA.

Front

What is an operon?

Back

A cluster of genes under the control of a single promoter, typically found in prokaryotes.

Front

What is the function of the repressor in gene regulation?

Back

It binds to the operator to block transcription of the gene.

Front

What is the significance of the operator in an operon?

Back

It is the region where the repressor binds to prevent transcription.