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Practice Test Questions - FFA Biotechnology CDE
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Practice Test Questions - FFA Biotechnology CDE
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Practice Test Questions - FFABiotechnology CDE
_____________ is a small part of the larger molecule that makes up a chromosome. -
ANS-Gene
______________ is made in the nucleus while _____________ build proteins in the
cytoplasm. - ANS-DNA, amino acids
_________________ is a small part of the larger molecule that makes up a
chromosome - ANS-gene
A breeder may use DNA information to: - ANS-a. track the individual gene that was
inserted
b. track desired genes from the elite line
A corn plant has the genotype BbRr where BB and Bb plants are resistant to corn
borers while bb plants are not AND RR and Rr plants are resistant to Roundup
Herbicide while rr plants are not. A corn breeder selfs the BbRr plant and produces
hundreds of offspring. They grow hundreds of plants from these seeds. What fraction of
all of these offspring from selfing BbRr will be BOTH corn borer resistant AND Roundup
resistant? - ANS-3/4 X 3/4
A corn plant has the genotype BbRr where BB and Bb plants are resistant to corn
borers while bb plants are not AND RR and Rr plants are resistant to Roundup
Herbicide while rr plants are not. Which of the following is a genotype that could be
made by selfing this plant? - ANS-BbRr
BBRR
bbrr
A corn plant with the genotype BbRr where BB and Bb plants are resitant to corn borers
while bb plants are not AND RR and Rr plants are resistant to Roundup Herbicide while
rr plants are not. A corn breeder selfs the BbRr plant and produces hundreds of
offspring. they grow hundreds of plants from these seeds. What fraction of all of these
offspring from selfing BbRr will be BOTH corn borer resistant AND Roundup resistant? -
ANS-3/4 X 3/4
,A cut plasmid has "sticky end" where: - ANS-The broken nucelotide pairs have a slight
charge
A fertilized egg is known as a... - ANS-zygote
a fertilized egg is known as... - ANS-zygote
A masked gene is known as a... - ANS-recessive
A masked gene is known as... - ANS-recessive
A peanut breeder would like to develop a variety that produces sweet flavored nuts for
the peanut butter industry. She searches the world collection of peanut lines and cannot
find any that produce sweet flavor. What should she do next? - ANS-Treat a peanut
plant or peanut seeds with a mutagen in the hopes that a random mutation will make a
new allele that can make peanuts produce sweet nuts.
A plant breeder makes a cross between two plants that are both the genotype Aa (Aa X
Aa). How many different genotypes with respect to the Aa genes will be produced in
their offspring? - ANS-3
A plant breeder makes a cross between two plants that are both the genotype Aa (Aa X
Aa). How many differnt genotypes with respect to the Aa genes will be produced in their
offspring? - ANS-3
A plant breeder wants to cross a red flower penstemon with a strong stemmed
penstemon. The plants have perfect flowers. If the breeder wasnts the strong stemmed
penstemon to be the male parent he should...? - ANS-Remove the stamen form the
flowers of the strong stemmed penstemon and collect the pollen the plants are shedding
without worrying about about damaging the pistil.
A plant breeder wants to cross a red flowered penstemon and a strong stemmed
penstemon. The plants have perfect flowers. If the breeder wants the strong stemmed
penstemon to be the male paretn, he should? - ANS-remove the stamen form the
flowers of the strong stemmed penstemon and collect the pollen the plants are
shedding, without worrying about damaging the pistil
A potato breeder develops a variety of potatoes that makes excellent frech fries, has a
good yield, and gives potato farmers very little management problems. Can the plant
breeder retire? - ANS-No, the growing environment can change and so a variety that
, grows well now, may not grow as well years from now. The breeder needs to always be
working for future change.
A transgenic organism is on that... - ANS-has genes from another organism inserted
into its chromosome
A transgenic organism is one that... - ANS-has genes inserted into it from another
organism
After PCR, DNA can be seen through processes such as: - ANS-Gel Electrophoresis &
Computer Imaging
Agrobacteria is attracted by: - ANS-Compounds generated by wounded plant cells
Agrobacteria is... - ANS-a. soil bacteria found in nature
b. inserts its DNA into plant cells
c. modify the plant to make food for the bacteria
Agrobacterium is a bacterium that: - ANS-a. causes disease in plants
b. has the ability to transfer a portion of its DNA into most cells
All the information needed to make an entire organism is in a molecule called... -
ANS-DNA
Amino acids, referred to as the building blocks of life, each... - ANS-have their own
shape
an altered version of a gene is known as a(n)... - ANS-allele
Approximately how mnay generations are needed in backcrossing before the plants
have at least 98% of elite genes and the transgene? - ANS-5-6
Bacteria are different from plants and animals in that they... - ANS-have fewer genes
than plants and animals
Below are listed 5 steps that would need to be completed by scientists to make a new
corn hybrid that has genetically engineered resistance to Roundup herbicide. List these
steps in the proper order.
a. Cross the transgenic corn plant with other corn plants that can make good hybrids
b. Extract all the genes from a strain of bacteria that is resistant to Roundup herbicide
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