Self Study Quiz - Gene Regions (Advanced Level) Go Back
1. How many regions do genes have?
4
5
2
3

2. What is recombinant DNA?
DNA that has had a segment of its sequnce removed with nothing added.
DNA that has had a segment removed and a new segment added in the removed segments place
DNA with no segments removed, but with a new segment added.
all of the above

3. What is the function of the promoter region of a gene?
The promoter contains the coded information, which designates the amino acid sequence of the protein to be produced.
The promoter turns the gene on and off and specifies how many copies of the protein will be produced.
The promoters only function is to turn the gene on and off.
The promoter signals the end of a coding sequence.

4. What is the function of the coding region of the gene?
It signals the end of a coding sequence.
This region contains the coded information, which designates the amino acid sequence of the protein to be produced.
It determines the number of proteins to be produced in the cell.
none of the above

5. What is the function of the termination sequence of a gene?
It signals the end of a gene coding sequence.
It signals the end of the DNA strand.
It signals the end of the DNA extraction process.
all of the above

6. What is true about the phosphoenolpyruvate (PEP) carboxylase promoter?
It is one of two commonly used promoters in biotech plants.
It produces the desired protein only in cells that are actively making photosynthetic proteins.
Genetic engineers use this promoter to limit gene expression to cells that make up green tissue.
all of the above

7. What is true about the 35S promoter?
The 35S promoter is only used in genetically engineered soybeans.
The 35S promoter originated from a soybean mosaic virus gene.
The 35S promoter turns on the gene in every cell of a plant that is metabolically active.
all of the above

8. Which is not true about the European corn borer.
Transgenic plants containing a Bt gene produce Cry proteins, which the ECB ingest when feeding on the plants.
When eaten by the European corn borer, Cry proteins bind to the insects' midgut causing those cells to burst from a water imbalance killing the corn borer.
Over many generations ECB can develop a resistance to a Bt protein.
All Cry proteins are toxic to the European corn borer

9. What regions of a gene can be modified by a genetic engineer?
the promoter
the coding region
the terminating sequence
all of the above

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