GMOS TEST EXAM QUESTIONS AND
ANSWERS (VERIFIED AND UPDATED)
Plants can be genetically modified in a number of different ways. Select all of the methods by
which scientists are genetically modifying plants - ANS - Plasmids within the plant pathogen.
Agrobacterium tumefaciens, are used to introduce genes into a plant
- Small particles of genetically modified DNA coated in a metal are fired by a gene gun into plant
tissue
- Small pieces of RNA are used to silence the expression of specific alleles
CRISPR is a tool used in genome editing. Which of the following descriptions correctly describes
how CRISPR may be used? - ANS - To remove and replace the gene of a soybean to improve
the quality of soybean oil
- To remove and replace the gene of a corn to increase the plant's drought tolerance
- To treat human diseases by deleting and replacing harmful mutations
- To inactivate genes to determine the role of the gene in the target cell
Genes are the basic physical and functional unit of hereditary and contain information that
codes for a loss of a product - ANS False
A gene consists of a long combination of five different nucleotide bases. Different combinations
of the nitrogenous bases give instructions for different products - ANS False
Some genes act as instructions to make molecules called proteins - ANS True
@2026/2027 ALLRIGHTS RESERVED.
,Some genes do not code for proteins but instead RNA molecules - ANS True
While genes may contain information for a single trait, they often create products that interact
in complex biological pathways that may be influenced by other genes - ANS True
Environmental conditions can influence the expression of a gene - ANS True
It is always a simple process to identify one gene associated with a single trait - ANS False
DNA carries the instructions to produce molecules that carry out of all of the functions of a cell
required for life and ultimately determines the chemical and physical characteristics of living
organisms - ANS True
In DNA, each molecule is encouraged by a gene a specific sequence of carbohydrates that
specify how a molecule is to be made - ANS False
The primary products of DNA are RNA and the arrangement of nucleotides within a gene
specifies the order and types of amino acids that must be put together to make an RNA
molecule - ANS False
Proteins are made of a long chain of chemicals called amino acids, which are determined by the
nitrogenous base sequence of nucleotides - ANS True
Th particular sequence of amino acids in the chain is what makes one protein different from
another - ANS True
General description of use of vector - ANS Genetic material is introduced into a plant by using
a plant bacterial pathogen
General description of particle bombardment - ANS Plant cells are transformed by
bombarding the tissue with the modified DNA particles
@2026/2027 ALLRIGHTS RESERVED.
,General description of RNA interference - ANS Plant cells are transformed by silencing
existing genes
Procedure of RNA interference - ANS Small pieces of RNA molecules inhibit gene expression
by neutralizing targeted mRNA molecules
Procedure of particle bombardment - ANS With the use of a gene gun, high velocity metal
particles containing a gene of interest can be transferred into the cell by penetrating the cell
wall and cell membrane of a plant. The DNA fragment will remain and become incorporated
into a plant's chromosome
Procedure of use of vector - ANS A new gene is inserted into Agrobacterium and is used to
infect a plant cell. The new gene is transferred to the plant, and the infected plant cells are used
to produce new plants
Examples of use of vector - ANS Bt plants that provide resistant to insect pests
Examples of particle bombardment - ANS wheat plants
Examples of RNA interference - ANS Artic apple
Description of herbicide tolerant plants - ANS renders the plant resistant to RoundUp
Description of insect resistant plants - ANS renders the plant resistant to pest
Description of nutritionally enhanced plants - ANS plant contains essential nutrients to make
a positive impact on global human health
@2026/2027 ALLRIGHTS RESERVED.
, How has herbicide tolerant plants been modified - ANS The plant is tolerant to glyphosate; a
key enzyme involved in amino acid synthesis that is present in all green plants
How has insect resistant plants been modified - ANS The plant contains a gene for a bacterial
pesticide that kills larval pests
How has nutritionally enhanced plants been modified - ANS the metabolic pathway to
produce a particular fatty acid has been reconstituted in the plant rendering it a more
nutritionally food source
How does herbicide tolerant plants work - ANS after being sprayed, the herbicide kills nearly
all the weeds, but the GM plant remains healthy
How does insect resistant plants work - ANS to prevent damage to the plant, the insect is
killed or a toxic barrier builds up in the plant so that the insect cannot feed on it
how does nutritionally enhanced plants work - ANS to provide necessary nutrients to
malnourished populations
Examples of herbicide tolerant plants approved commercial products - ANS soybeans, corn,
and canola
Examples of insect resistant plants approved commercial products - ANS soybeans and corn
Examples of nutritionally enhanced plants approved commercial products - ANS canola
available animal genetically modified organisms and their uses - ANS cows and goats used to
produce products in the milk useful to humans
available plants genetically modified organisms and their uses - ANS GM plants that reduce
the impact of pest species
@2026/2027 ALLRIGHTS RESERVED.
ANSWERS (VERIFIED AND UPDATED)
Plants can be genetically modified in a number of different ways. Select all of the methods by
which scientists are genetically modifying plants - ANS - Plasmids within the plant pathogen.
Agrobacterium tumefaciens, are used to introduce genes into a plant
- Small particles of genetically modified DNA coated in a metal are fired by a gene gun into plant
tissue
- Small pieces of RNA are used to silence the expression of specific alleles
CRISPR is a tool used in genome editing. Which of the following descriptions correctly describes
how CRISPR may be used? - ANS - To remove and replace the gene of a soybean to improve
the quality of soybean oil
- To remove and replace the gene of a corn to increase the plant's drought tolerance
- To treat human diseases by deleting and replacing harmful mutations
- To inactivate genes to determine the role of the gene in the target cell
Genes are the basic physical and functional unit of hereditary and contain information that
codes for a loss of a product - ANS False
A gene consists of a long combination of five different nucleotide bases. Different combinations
of the nitrogenous bases give instructions for different products - ANS False
Some genes act as instructions to make molecules called proteins - ANS True
@2026/2027 ALLRIGHTS RESERVED.
,Some genes do not code for proteins but instead RNA molecules - ANS True
While genes may contain information for a single trait, they often create products that interact
in complex biological pathways that may be influenced by other genes - ANS True
Environmental conditions can influence the expression of a gene - ANS True
It is always a simple process to identify one gene associated with a single trait - ANS False
DNA carries the instructions to produce molecules that carry out of all of the functions of a cell
required for life and ultimately determines the chemical and physical characteristics of living
organisms - ANS True
In DNA, each molecule is encouraged by a gene a specific sequence of carbohydrates that
specify how a molecule is to be made - ANS False
The primary products of DNA are RNA and the arrangement of nucleotides within a gene
specifies the order and types of amino acids that must be put together to make an RNA
molecule - ANS False
Proteins are made of a long chain of chemicals called amino acids, which are determined by the
nitrogenous base sequence of nucleotides - ANS True
Th particular sequence of amino acids in the chain is what makes one protein different from
another - ANS True
General description of use of vector - ANS Genetic material is introduced into a plant by using
a plant bacterial pathogen
General description of particle bombardment - ANS Plant cells are transformed by
bombarding the tissue with the modified DNA particles
@2026/2027 ALLRIGHTS RESERVED.
,General description of RNA interference - ANS Plant cells are transformed by silencing
existing genes
Procedure of RNA interference - ANS Small pieces of RNA molecules inhibit gene expression
by neutralizing targeted mRNA molecules
Procedure of particle bombardment - ANS With the use of a gene gun, high velocity metal
particles containing a gene of interest can be transferred into the cell by penetrating the cell
wall and cell membrane of a plant. The DNA fragment will remain and become incorporated
into a plant's chromosome
Procedure of use of vector - ANS A new gene is inserted into Agrobacterium and is used to
infect a plant cell. The new gene is transferred to the plant, and the infected plant cells are used
to produce new plants
Examples of use of vector - ANS Bt plants that provide resistant to insect pests
Examples of particle bombardment - ANS wheat plants
Examples of RNA interference - ANS Artic apple
Description of herbicide tolerant plants - ANS renders the plant resistant to RoundUp
Description of insect resistant plants - ANS renders the plant resistant to pest
Description of nutritionally enhanced plants - ANS plant contains essential nutrients to make
a positive impact on global human health
@2026/2027 ALLRIGHTS RESERVED.
, How has herbicide tolerant plants been modified - ANS The plant is tolerant to glyphosate; a
key enzyme involved in amino acid synthesis that is present in all green plants
How has insect resistant plants been modified - ANS The plant contains a gene for a bacterial
pesticide that kills larval pests
How has nutritionally enhanced plants been modified - ANS the metabolic pathway to
produce a particular fatty acid has been reconstituted in the plant rendering it a more
nutritionally food source
How does herbicide tolerant plants work - ANS after being sprayed, the herbicide kills nearly
all the weeds, but the GM plant remains healthy
How does insect resistant plants work - ANS to prevent damage to the plant, the insect is
killed or a toxic barrier builds up in the plant so that the insect cannot feed on it
how does nutritionally enhanced plants work - ANS to provide necessary nutrients to
malnourished populations
Examples of herbicide tolerant plants approved commercial products - ANS soybeans, corn,
and canola
Examples of insect resistant plants approved commercial products - ANS soybeans and corn
Examples of nutritionally enhanced plants approved commercial products - ANS canola
available animal genetically modified organisms and their uses - ANS cows and goats used to
produce products in the milk useful to humans
available plants genetically modified organisms and their uses - ANS GM plants that reduce
the impact of pest species
@2026/2027 ALLRIGHTS RESERVED.
