AP Biology: Gene Regulation

Front

What does a promoter do?

Back

it allows a gene (or genes) to be transcribed

Front

An operon consists of all the following EXCEPT: operator, promoter, regulatory gene, genes of the operon (gene cluster).

Back

regulatory gene

Front

A protein that binds to the operator and blocks the RNA polymerase

Back

repressor

Front

The "on/off" switch for an operon is called the

Back

operator

Front

A small molecule that binds to a repressor and makes it ACTIVE is a

Back

corepressor

Front

A small molecule that binds to the repressor and makes it INACTIVE is a

Back

inducer

Front

When something sticks to the DNA to turn off gene expression, this is considered:

Back

negative control

Front

When a gene is transcribed when turned on by activator that sticks to DNA or changes the shape of a molecule already attached, it is considered _____ control.

Back

positive

Front

Two types of negative control are

Back

repressible & inducible

Front

Inducible negative control is when the gene cluster is transcribed when there is the ____ of a specific molecule from a metabolic pathway.

Back

presence