Gene Regulation

Gene regulation can be alternatively defined as...

• Both of the other answer choices are accurate. 

• how we express a gene or not. 

• how we make a protein or not. 

What type of cell is E. coli?

• Prokayotic

• Eukaryotic

What is an enzyme?

• Part of the DNA molecule.

• A carbohydrate found in milk. 

• Biological catalyst that accelerate chemical reactions.

The lac operon deals with what?

• Lactose

• Tryptophan

• Lactic acid

What is the process by which DNA builds mRNA?

• transcription

• promoter

• translation

The process by which mRNA makes proteins (that make you) is known as?

• transcription

• promoter

• translation

In other words, gene regulation can happen at any point during protein synthesis, but it most often occurs during...

• DNA polymerase

• translation.

• transcription.

The TATA box is called that because...

• it is composed of Adenine, Guanine, Adenine, Guanine. 

• it is composed of a protein known as TATA.

• it is composed of Thymine, Adenine, Thymine, Adenine.

Why would we not be able to make the protein if the regulatory protein wasn't present?

• The RNA polymerase would not be able to bind to the DNA and express that gene.

• The regulatory protein is part of what makes the protein that the gene codes for.

• The RNA polymerase is made of the regulatory protein.

The repressor is keeping the operator in which position?

• On

• Off