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Prentice Hall Biology

Chapter 13: Genetic Engineering

TAKS Practice Test

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(TAKS 2, Bio TEKS 6C.1)
1. A molecule containing DNA from two different organisms is called
A a plasmid.
B a polyploid.
C a hybrid organism.
D recombinant DNA.

(TAKS 2, Bio TEKS 6C.1)
2. During transformation, a cell
F is treated with radiation.
G has two genetically different parents.
H has foreign DNA inserted in its chromosome.
J has parents of different species.

(TAKS 2, Bio TEKS 6A)
3. A step that is NOT essential for producing recombinant DNA is
A cutting the desired gene from the surrounding genes.
B combining the desired genes with DNA from the recipient gene.
C inserting the combined DNA into a cell of a living organism.
D reading the sequence of nucleotides in the gene being manipulated.

(TAKS 2, Bio TEKS 6A)
4. Polymerase chain reaction is used to
F determine the sequence of DNA.
G make copies of a DNA sequence.
H selectively breed plants and animals.
J produce mutations in bacteria.

(TAKS 2, Bio TEKS 6A)
5. Gel electrophoresis enables scientists to
A separate DNA fragments.
B combine DNA fragments.
C count the genes in DNA.
D insert DNA in cells.

(TAKS 2, Bio TEKS 6D.1)
6. Genetic engineering has been used to produce
F medicines.
G food animals.
H improved crops.
J all of the above

(TAKS 2, Bio TEKS 6A)
7. Which is used to cut DNA molecules at specific points?
A gel electrophoresis
B PCR analysis
C a restriction enzyme
D recombinant DNA

(TAKS 2, Bio TEKS 6C.1)
8. Breeders can increase the genetic variation in a population by using
F inbreeding.
G mutations.
H hybridization.
J restriction enzymes.

(TAKS 2, Bio TEKS 6D.1)
9. Drugs that prevent chromosomes from separating during meiosis have produced plants that are hardier and taller than normal plants. This condition is known as
A a transformation.
B monoploidism.
C polyploidy.
D a point mutation.

10. What is the momentum of a 40-kg box that slides at 5 m/s across the surface of an icy pond? HINT: Momentum (p) = mass (m) × velocity (v)
F 45 kg•m/s
G 200 kg•m/s
H 200 m/s
J 100 kg•m/s