+
Related Flashcards
Related Topics
Cards In This Set
| Front | Back |
|
What is a marketed use of genetic engineering?
a. insecticides
b. insulin
c. herbicides
d. cleaning up oil spills
e. all of the above
|
E
|
|
Strawberries have been genetically engineered
a. as hybrids with blueberries.
b. in a variety of colors.
c. to resist frost.
d. for faster growth.
e. for medical research.
|
C
|
|
What is the underlying principle of biotechnology?
a. All life is based on the same genetic code.
b. Plant and animal genes are not interchangeable.
c. Bacteria are the "workhorses" of the molecular world.
d. Scientists need a strong moral code to work as genetic engineers.
e. Selective breeding must be carefully controlled.
|
A
|
|
DNA fingerprinting works to identify criminals because
a. all individuals have the same DNA.
b. no two individuals, except for identical twins, have the same DNA.
c. all individuals have unique DNA.
d. DNA samples are readily available from suspects.
e. DNA can be used to create a criminal profile.
|
B
|
|
DNA can be found in all samples EXCEPT
a. saliva.
b. blood.
c. semen.
d. hair shaft.
e. All of the above contain DNA.
|
D
|
|
Variable number tandem repeat (VNTR) sequences
a. do not code for a specific amino acid.
b. are repeated "nonsense" phrases of DNA bases
c. repeat up to 256 times, depending on the individual.
d. all of the above
e. only b & c
|
D
|
|
The controversy about the admissibility of DNA evidence to a court of law
a. has not been resolved to the satisfaction of defense attorneys.
b. was settled following a well-publicized murder trial.
c. has abated since a 1992 report issued by the National Academy of Sciences wrote guidelines for DNA evidence.
d. can never be resolved because all ethnic groups share some DNA characteristics.
e. is a moot argument because of the exorbitant expense of DNA testing.
|
C
|
|
Genetic diseases are usually caused by
a. the presence of a particular enzyme.
b. the lack of a particular protein.
c. an incorrect sequence of bases in a gene.
d. a defective gene on chromosome 7.
e. b & c
|
E
|
|
Since the advent of gene therapy for genetic diseases,
a. general practitioners have been more successful in curing some inherited diseases.
b. physicians have disregarded symptom-based treatment in favor of biotechnology.
c. Health Management Organizations have funded most of the experimental treatments and genetic research projects.
d. clinics have reported positive results doing in vitro gene therapy research.
e. new medical techniques for widespread diseases have been perfected.
|
D
|
|
What has affected the preliminary results from some recently initiated gene therapy trials?
a. The laboratories have not had enough time to develop a gene-therapy protocol.
b. Congress is hesitant to fund any more experimental programs at the National Institutes of Health.
c. Cells into which corrected genes are introduced cannot find and copy these genes to make new proteins.
d. There is a voluntary moratorium on gene therapy research because of the fear of introducing a toxic gene into the environment.
e. Drug companies are stalling the research projects until they can get assurances about development patents.
|
C
|
|
What is cancer?
a. a potentially fatal bacterial infection
b. a disease characterized by rampant cell growth
c. a genetic defect expressed in bone or tissue
d. a condition in which cell membranes disintegrate
e. a disease caused by an injury to the mitochondria
|
B
|
|
Which of the following can damage DNA?
a. the byproducts of cellular respiration
b. several varieties of oxidants
c. molecules from some processed foods
d. high energy radiation
e. all of the above
|
E
|
|
Which procedure would forensic scientists use when the laboratory needs a larger sample of DNA to run an analysis?
a. radioactive isotope tagging
b. variable number tandem repeats (VNTR)
c. cloning
d. polymerase chain reactions (PCR)
e. gene splicing
|
D
|
|
According to recent scientific research, how many times a day does the DNA in each body cell need to be repaired?
a. 10
b. 100
c. 1,000
d. 10,000
e. 100,000
|
D
|
|
What is distinctive about the Human Immunodeficiency Virus (HIV)?
a. This virus destroys the body's main defense system.
b. Research on the Human Immunodeficiency Virus is at the molecular level and on a global scale.
c. The HIV has two protein coats with different functions.
d. Research to block the HIV life cycle has led to the successful development of protease inhibiters.
e. all of the above
|
E
|
