Genetics 2: Biotechnology Question Preview (ID: 56901)
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Scientists have genetically altered a common virus so that it can destroy the most lethal type of brain tumor without harming the healthy tissue nearby. This technology is used for all of the following except
a) controlling the disease
b) diagnosing the disease
c) curing the disease
d) treating the disease
The improved soybeans are most likely being developed by the process of
a) asexual reproduction
b) natural selection
c) genetic engineering
d) habitat modification
One common use of this technology is the
a) introduction of a toxic substance to kill bacterial cells
b) production of hormones or enzymes to replace missing human body chemicals
c) change of single-celled organisms to multicellular organisms
d) production of a human embryo to aid women who are unable to have children
What process is illustrated in the diagram below?
a) genetic engineering
b) direct harvesting
c) meiosis
d) chromatography
This process is known as
a) recombination of chromosomes
b) mutation by deletion of genetic material
c) sorting of genes
d) genetic engineering
The DNA of a human cell can be cut and rearranged by using
a) a scalpel
b) hormones
c) enzymes
d) electrophoresis
Which substance was needed to join the insulin gene to the bacterial DNA as shown?
a) a specific carbohydrate
b) antibodies
c) hormones
d) a specific enzyme
Researchers Cohn and Boyer transferred a gene from an African clawed frog into a bacterium. To accomplish this, these scientists had to use
a) radiation to increase the gene mutation rate of the bacterial cells
b) enzymes to cut out and insert the gene
c) hereditary information located in amino acids
d) cancer cells to promote rapid cell division
A biotechnology firm has produced tobacco plants that synthesize human antibodies that prevent bacterial diseases. One of the first steps in the production of these plants required
a) inserting human DNA segments into the cells of tobacco plants
b) using selective breeding to increase the number of antibody genes in tobacco plants
c) growing tobacco plants in soil containing a specific fertilizer
d) using natural selection to increase the survival of antibody-producing tobacco plants
Which statement best describes the outcome of this procedure?
a) Bacterial cells may form a multicellular embryo.
b) Bacterial cells will destroy defective human genetic material.
c) The inserted human DNA may direct the synthesis of human proteins.
d) The inserted human DNA will change harmful bacteria to harmless ones.
A gene that codes for resistance to glyphosate, a biodegradable weedkiller, has been inserted into certain plants. As a result, these plants will be more likely to
a) produce chemicals that kill weeds growing near them
b) convert glyphosate into fertilizer
c) die when exposed to glyphosate
d) survive when glyphosate is applied to them
Which sheep would be most genetically similar to sheep D?
a) sheep B, only
b) both sheep A and C
c) both sheep A and B
d) sheep A, only
Which statement best describes a population of organisms if cloning is the only method used to reproduce this population?
a) The mutation rate in the population would be rapid.
b) The population would evolve rapidly.
c) There would be little chance for variation within the population.
d) The population would be more likely to adapt to a changing environment.
Which statement provides accurate information about the technique illustrated below?
a) New varieties of organisms can be developed by this technique known as selective breeding.
b) Since the development of cloning, this technique is no longer used in agriculture.
c) This technique is used by farmers to eliminate mutations in future members of the species.
d) This technique results in offspring that are genetically identical to the parents.
This procedure is known as
a) differentiation
b) selective breeding
c) gene insertion
d) cloning
The two desirable qualities may be combined in a new variety of strawberry plant by
a) direct harvesting
b) selective breeding
c) cloning
d) asexual reproduction
This technique of producing organisms with specific qualities is known as
a) gene replication
b) random mutation
c) natural selection
d) selective breeding
The success of this program was most likely due to the fact that the introduced females
a) solved the reproductive problems of the species by asexual methods
b) produced more reproductive cells than the male panthers in Texas
c) increased the genetic variability of the panther population in Florida
d) mated only with panthers from Texas
Some farmers currently grow genetically engineered crops. An argument against the use of this technology is that
a) it produces insect-resistant plants
b) its long-term effects on humans are still being investigated
c) it always results in crops that do not taste good
d) it increases crop production
In the United States, there has been relatively little experimentation involving the insertion of genes from other species into human DNA. One reason for the lack of these experiments is that
a) 1
b) 2
c) 3
d) 4
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