Tag: transgenic organisms

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Questions Related to transgenic organisms

Multiple choice biology genetics of the future genetically modified animals and crops transgenic organisms biotechnology and its applications

Which technique made it possible to genetically engineer living organisms ___________________.

  1. Recombinant DNA techniques

  2. Heavy isotope labelling

  3. X-ray diffraction

  4. Hybridisation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Recombinant DNA technology is the fundamental technique that allows scientists to cut, join, and insert DNA from one organism into another, enabling genetic engineering.

Multiple choice biology genetics of the future genetically modified animals and crops transgenic organisms biotechnology and its applications

Which transgenic animal has been given human genes for organ transplantation into humans without risk of rejection?

  1. Cow

  2. Sheep

  3. Goat

  4. Pig
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Pigs are often researched as potential organ donors for humans (xenotransplantation) because their organ sizes are similar to humans, and they can be genetically modified to reduce immune rejection.

Multiple choice biology genetics of the future genetically modified animals and crops transgenic organisms biotechnology and its applications

Transgenic animals are generally produced for all of the following needs except

  1. Testing of chemical safety

  2. Testing of vaccine safety

  3. Stimulation of pathogenicity

  4. Production of pharmacologically important proteins
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Transgenic animals are created to study diseases, test safety, and produce proteins, not to stimulate or create new pathogens.

Multiple choice biology genetics of the future genetically modified animals and crops transgenic organisms biotechnology and its applications

One of the advantages of developing transgenic mice is that it is very useful

  1. To study vaccine safety

  2. In producing new varieties of mice

  3. In developing a show piece example

  4. In gene targeting
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Transgenic mice are specifically designed to be sensitive to certain pathogens or toxins, making them excellent models for testing the safety and efficacy of vaccines.

Multiple choice biology genetics of the future genetically modified animals and crops transgenic organisms biotechnology and its applications

Which is correct regarding genetically engineered insulin using E. coli ________________.

  1. Difficult to purify

  2. Obtained in large unlimited quantities

  3. Possibility of transmission of animal diseases

  4. Insulin obtained varies in chemical structure
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Using E. coli to produce insulin allows for large-scale, cost-effective, and unlimited production of human insulin, which is safer than insulin derived from animal pancreases.

Multiple choice biology genetics of the future genetically modified animals and crops transgenic organisms biotechnology and its applications

Which best describes a transgenic organism ?

  1. One that act as the donor for DNA to be moved into another organism

  2. One produced by cloning a mutant cell

  3. One that contains a foreign gene and is free- living in the environment

  4. Any genetically modified organism- resulting from laboratory research
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Transgenic Organism or Genetically Modified Organisms (GMO) is an organism whose genetic material has been altered using genetic engineering techniques. Bacteria are the easiest organism to engineer and have been used for research, food production, industrial protein purification etc. There is a potential to use them for environmental purposes or as medicines.

So, the correct option is 'One that contains a foreign gene and is free-living in the environment'.

Multiple choice biology genetics of the future genetically modified animals and crops transgenic organisms biotechnology and its applications

Genes found in plants and animals that are of actual or potential value to people are known as

  1. genetic resources

  2. biotic resources

  3. oceanic resources

  4. natural resources
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

There are various genes that are found in animals and pants that are of important use for the humans. These genes are extracted and then introduced into organisms by genetic engineering.

These genes are known as genetic resources.
So, the correct option is 'genetic resources'

Multiple choice transgenic organisms biotechnology and its applications biotechnology and its application biology

Which one of the following bacteria is used for production of transgenic plants?

  1. Escherichia coli

  2. Bacillus subtilis

  3. Staphylococcus aureus

  4. Agrobacterium tumefaciens
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Agrobacterium tumefacians is used for the production of transgenic plants as it carries a plasmid capable of inducing tumors in plants. These tumors can be artificially induced by transferring the gene into a plant which otherwise is not prone to infection, where the plasmid is genetically engineered for inserting a particular gene, for example, the transfer of delta endotoxin and npt II gene, from Bacillus thuringiensis, in commercially useful plants like cotton to protect it from its predator, the gall worm

So, the correct answer is 'Agrobacterium tumefaciens'

Multiple choice transgenic organisms biotechnology and its applications biotechnology and its application biology

The process of reduction of pollution by use of organisms is called as

  1. Biotechnology

  2. Bioremediation

  3. Bioneutralizer

  4. Biopurifier
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Bio-remediation is a waste management technique that involves the use of organisms to remove or neutralize pollutants from a contaminated site. Bio-remediation is a treatment that uses naturally occurring organisms to break down hazardous substances into less toxic or non toxic substances.