25 Questions
What is the purpose of using Gama or x-ray in induced mutation?
To produce a new species or hybrid
What is the role of growth promotors in tissue culture technique?
To assist in chromosomal rearrangements
What is the result of chromosomal rearrangements in tissue culture technique?
Morphological alterations
What is the source of the special gene in gene manipulation technique?
Bacteria or viruses
What is the purpose of gene manipulation technique?
To introduce a special desire trait into an organism
What is the primary function of the Promoter in the transgenic process?
To initiate or start the replication process
What is the Promoter composed of?
A piece of RNA with few nucleotides
What is the result of the Promoter's function?
The initiation of gene expression
What is the significance of the number of nucleotides in the Promoter?
It is a few in number
What is the process that the Promoter is involved in?
Replication
What type of bacteria are modified genes from?
Bacillus thurginsis bacteria
What do insect-resistant plants produce?
Special toxins
What is the impact of insect-resistant plants on non-target species?
They can harm other non-target species
Where are non-target species typically found?
Along the food chain
What is the purpose of modifying genes from Bacillus thurginsis bacteria?
To produce insect-resistant plants
What is the main concern related to genetically modified crops?
Unintended harm to non-target species
What is a potential effect of genetically modified crops on the environment?
Gene flow to non-target species
Which of the following is a disadvantage of genetically modified crops?
Uncontrolled spreading of genetically modified traits
What is a potential impact of genetically modified crops on ecosystems?
Disruption of food chains
What is a concern related to the use of genetically modified crops?
Unintended consequences on ecosystem balance
What is the trend of global land areas of crops with genetically modified agronomic traits?
Growing
What is the purpose of genetically modifying crops for agronomic traits?
To increase crop yields
Where are genetically modified crops with agronomic traits found?
In different countries around the world
What is being modified in genetically modified crops with agronomic traits?
Agronomic traits
What is the result of genetically modifying crops for agronomic traits?
Increased crop yields
Study Notes
Genetically Modified Crops
- Global land areas of genetically modified crops with agronomic traits are increasing and distributed across different countries worldwide.
Induced Mutation
- Induced mutation involves the use of gamma or x-ray to increase the number of mutations in DNA chains, producing a new species or hybrid.
- However, this method is characterized by uncontrolled mutations.
Tissue Culture Technique
- This method involves the use of recurrent plant tissue, growth promoters, and specific temperatures to induce chromosomal rearrangements and morphological alterations.
Gene Manipulation Technique
- Gene manipulation involves the transfer of special genes with desired traits from plasmids of bacteria or viruses.
- The process comprises three main components:
- The Promoter: a piece of RNA with few nucleotides necessary for initiating the replication of transgenic process.
- Disadvantages and Environmental Effects of Genetically Modified Crops:
- Harm to non-target species: genetically modified plants containing modified genes of Bacillus thurginsis bacteria produce special toxins that can harm other non-target species in the food chain.
This quiz covers the global distribution and growth of genetically modified crops with agronomic traits across different countries worldwide.
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