U5L5E1: Regulating Gene Expression

What is the correct order to make a protein?

• Protein, DNA, RNA

• RNA, DNA, Protein

• DNA, RNA, Protein

• Protein, RNA, DNA

Tags

NGSS.HS-LS1-1

How would the DNA sequence GCTATA be transcribed to mRNA?

• GCUAUA
• CGATAT
• CGAUAU
• GCUTUT

Transcribe the following DNA sequence into RNA: (Hint! Remember that RNA has U instead of T!)

AAT TAG GGC TCG

• AAT TAG GGC TCG

• TTA ATC CCG AGC

• UUA AUC CCG AGC

• TTU UTC CCG UGC

What is Transcription?

• The making DNA segment.from mRNA.

• The making of an RNA strand into a protein.

• The making of an mRNA strand from the DNA template.

Amino acids are the building blocks of... 

• DNA
• RNA
• Atoms
• Proteins

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

What does protein synthesis DO?

• makes genes
• makes proteins
• makes new cells
• deletes cells

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

How can a person's muscle cells have the same exact DNA sequences as their nerve cells even though the look and perform completely different?

• The two different cells become mutated
• The proteins expressed in each cell are different
• They actually have different DNA in the two types of cells.
• The genome of the different cells changes

Tags

NGSS.HS-LS1-4

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

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

• promoter
• repressor
• operator
• gene