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NEET Questions / Botany / Biotechnology and Its Applications
Gene therapy can involve modifying genes inside the body (in vivo) or outside the body (ex vivo). Which method involves directly introducing the therapeutic gene into the patient's cells within their body?
In vivo
Ex vivo
Both in vivo and ex vivo
Neither in vivo nor ex vivo
One of the challenges of gene therapy is ensuring the therapeutic gene reaches the target cells. This process is known as:
Gene expression
Gene regulation
Gene delivery
Gene silencing
Rosie the cow was a transgenic animal produced by which technique?
Retroviral infection
Biolistic gene transfer
Microinjection
Embryonic stem cell transfer
Which of the following is NOT a potential benefit of producing transgenic animals?
Production of valuable proteins in milk
Disease resistance in livestock
Improved growth rates in animals
Increased biodiversity in natural ecosystems
Transgenic animals are used as model organisms to study human diseases. Which aspect makes them suitable for this purpose?
They have shorter lifespans than humans.
They are easier to maintain in laboratory settings than humans.
They can be genetically modified to mimic human disease conditions.
They are ethically less concerning to experiment on than humans.
What is the role of a 'reporter gene' in the production of transgenic animals?
It encodes the protein of interest.
It helps identify cells that have successfully incorporated the transgene.
It promotes the integration of the transgene into the host genome.
It silences the expression of other genes.
Which of these is NOT a common ethical concern related to transgenic animals?
Animal welfare issues
Potential ecological risks
Increased cost of animal feed
Ethical considerations of modifying animal genomes
The introduction of a foreign gene into an animal's genome can result in:
Overexpression of the introduced gene
Silencing of the introduced gene
Position effects influencing gene expression
All of the above
Which of the following is NOT a use of genetically engineered bacteria in medicine?
Production of human insulin
Production of human growth hormone
Production of antibiotics by genetically modifying disease-causing bacteria
Production of vaccines
RNA interference (RNAi) technology is used for therapeutic purposes by:
Introducing new genes into cells
Amplifying specific DNA sequences
Silencing specific genes involved in disease progression
Producing monoclonal antibodies
