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1
Information in DNA can code for the same protein in any organism.
A)True
B)False
2
DNA fingerprinting
A)directly examines nucleotide sequence.
B)examines segments of DNA, which vary in length between individuals.
C)transfers DNA from one person to another.
D)uses stem cells.
3
Restriction fragments
A)are used in a technique that sequences DNA.
B)create many copies of DNA from a small amount.
C)are pieces of DNA cut by enzymes at specific sites.
D)are pieces of protein cut by enzymes at specific sites.
4
A technique that separates DNA fragments of different lengths is
A)electrophoresis.
B)DNA sequencing.
C)polymerase chain reaction.
D)DNA fingerprinting.
5
The Human Genome Project
A)was an international effort.
B)determined the sequence of a healthy human genome.
C)allows comparisons of the human genome with that of other organisms.
D)All of the above are correct.
6
The term cloning can be applied to which of the following situations?
A)creating an exact copy of a fragment of DNA
B)creating a second organism that is genetically identical to the first
C)using a restriction enzyme
D)Both a and b are correct.
7
Which of the following terms best describes an organism that possesses a cloned fragment of DNA from another species?
A)cloned
B)genetically modified (GM)
C)usable for bioremediation
D)genomic
8
Stem cell research is controversial because
A)of the source of stem cells.
B)stem cells may cure certain diseases.
C)stem cells are not yet differentiated.
D)stem cells are not yet determined.
9
DNA libraries are
A)stored in computers, so that they can be easily searched.
B)are an index of various organisms.
C)collections of DNA fragments that represent the genome of an organism.
D)a person's unique electrophoresis banding pattern.
10
Restriction enzymes
A)cut DNA randomly.
B)cut DNA at specific sequences.
C)can create sticky ends.
D)Both b and c are correct.
11
These are sequences of DNA that are repeated a variable number of times from one individual to another:
A)cut RNA fragments
B)ligases
C)tandem repeats
D)variable number tandem repeats (VNTRs)
12
DNA sequencing data indicate that there are only about ________ protein-coding genes.
A)140,000
B)10,000
C)20,000
D)5,000
13
These DNA regions do not code for protein and are not transcribed into RNA:
A)Exons
B)Structural genes
C)Introns
D)Prions
14
These portions of genes that show very little change across many species represent portions of the protein that are important for function:
A)Multigene families
B)Tandem repeats
C)Segmental duplications
D)Plasmids





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