Applications of Genetic Engineering
Practice Study Guide Exam.
Unlike animal breeders and human geneticists, plant breeders rarely use pedigree charts in their work.
Which is most likely the reason that plant breeders use other methods for analyzing results instead of
constructing pedigree charts? - CORRECT ANSWER a. Plants have many more offspring than most
animals have.
The Punnett square below predicts the outcome of a genetic cross done by a breeder.
mc007-1.jpg
Which genotype will offspring have if they inherit the a allele from both parents? - CORRECT ANSWER c.
aa
Which is the greatest contribution of Gregor Mendel to society? - CORRECT ANSWER d. an
understanding of genetic principles
Which is the result of breeding individuals of different parentage? - CORRECT ANSWER b. hybrid vigor
Which is an example of selective breeding? - CORRECT ANSWER b. Transferring pollen from flowers on
one pea plant to flowers on another pea plant.
Each horizontal row in a pedigree chart represents - CORRECT ANSWER b. a generation
The pedigree chart below shows the inheritance of a genetic disorder in three generations of one
species of insect. Shaded shapes represent individuals that have the disorder.
mc022-1.jpg
, Which mates are least likely to produce offspring that have the disorder? - CORRECT ANSWER c. male 5
and female 6
Pedigree charts use shaded symbols to show organisms that have a particular trait, such as a defective
gene, being traced in the chart. A breeder wants to make a pedigree chart of male horses to avoid
breeding males that have a defective gene. What symbol would the horse breeder use to show a male
who is affected by a defective gene? - CORRECT ANSWER b. shaded square
The pedigree chart below shows the inheritance of a genetic trait in a line of sheep.
mc017-1.jpg
If sheep 7 was to have offspring, in which generation would the offspring be? - CORRECT ANSWER c.
third
Which is used in selective breeding? - CORRECT ANSWER b. artificial selection
Which best illustrates the importance of DNA technology? - CORRECT ANSWER c. a potato plant that is
modified to resist pests
Which of the statements about the relationship between DNA technology and genetic diversity is
accurate? - CORRECT ANSWER d. DNA technology can increase genetic diversity by producing more
variant alleles.
Which is a mechanical vector that injects recombinant DNA directly into the nucleus of a host cell? -
CORRECT ANSWER b. micropipette
Which best describes the process of making recombinant DNA? - CORRECT ANSWER NOT a. The isolated
DNA is inserted into a mechanical vector for cloning.
NOT b. The DNA fragments are connected to a carrier to be inserted into a host.
(BOTH OF THESE ARE WRONG ANSWERS)
Practice Study Guide Exam.
Unlike animal breeders and human geneticists, plant breeders rarely use pedigree charts in their work.
Which is most likely the reason that plant breeders use other methods for analyzing results instead of
constructing pedigree charts? - CORRECT ANSWER a. Plants have many more offspring than most
animals have.
The Punnett square below predicts the outcome of a genetic cross done by a breeder.
mc007-1.jpg
Which genotype will offspring have if they inherit the a allele from both parents? - CORRECT ANSWER c.
aa
Which is the greatest contribution of Gregor Mendel to society? - CORRECT ANSWER d. an
understanding of genetic principles
Which is the result of breeding individuals of different parentage? - CORRECT ANSWER b. hybrid vigor
Which is an example of selective breeding? - CORRECT ANSWER b. Transferring pollen from flowers on
one pea plant to flowers on another pea plant.
Each horizontal row in a pedigree chart represents - CORRECT ANSWER b. a generation
The pedigree chart below shows the inheritance of a genetic disorder in three generations of one
species of insect. Shaded shapes represent individuals that have the disorder.
mc022-1.jpg
, Which mates are least likely to produce offspring that have the disorder? - CORRECT ANSWER c. male 5
and female 6
Pedigree charts use shaded symbols to show organisms that have a particular trait, such as a defective
gene, being traced in the chart. A breeder wants to make a pedigree chart of male horses to avoid
breeding males that have a defective gene. What symbol would the horse breeder use to show a male
who is affected by a defective gene? - CORRECT ANSWER b. shaded square
The pedigree chart below shows the inheritance of a genetic trait in a line of sheep.
mc017-1.jpg
If sheep 7 was to have offspring, in which generation would the offspring be? - CORRECT ANSWER c.
third
Which is used in selective breeding? - CORRECT ANSWER b. artificial selection
Which best illustrates the importance of DNA technology? - CORRECT ANSWER c. a potato plant that is
modified to resist pests
Which of the statements about the relationship between DNA technology and genetic diversity is
accurate? - CORRECT ANSWER d. DNA technology can increase genetic diversity by producing more
variant alleles.
Which is a mechanical vector that injects recombinant DNA directly into the nucleus of a host cell? -
CORRECT ANSWER b. micropipette
Which best describes the process of making recombinant DNA? - CORRECT ANSWER NOT a. The isolated
DNA is inserted into a mechanical vector for cloning.
NOT b. The DNA fragments are connected to a carrier to be inserted into a host.
(BOTH OF THESE ARE WRONG ANSWERS)
