Gene Expression Test Review

What is the correct order to make a protein?

• Protein, DNA, RNA

• RNA, DNA, Protein

• DNA, RNA, Protein

• Protein, RNA, DNA

Where is DNA and RNA made?

• nucleus

• cytoplasm

• mitochondria

• ER

RNA contains which sugar?

• deoxyribose

• Ribose

• glucose

• fructose

RNA has what base that is instead of thymine?

• guanine

• adenine

• thymine

• uracil

How would the DNA sequence GCTATA be transcribed to mRNA?

• GCUAUA
• CGATAT
• CGAUAU
• GCUTUT

Amino acids are the building blocks of... 

• DNA
• RNA
• Atoms
• Proteins

The lac operon genes only become expressed if:

• lactose binds to the repressor
• glucose binds to the repressor
• lactose binds to the operator
• the repressor binds to the operator

In the lac operon model the genes within the operon will be expressed if:

• lactose is absent in the cell
• glucose is present in the cell
• lactose is present in the cell

If an mRNA molecule has introns and exons in it, where is it?

• At a ribosome
• In the nucleus
• In a prokaryotic cell
• could be in the nucleus or the ribosome

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

• promoter
• repressor
• operator
• gene