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NEET Questions / Botany / Biotechnology and Its Applications / Transgenic Animals
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.
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
Transgenic animals are primarily developed for which of the following purposes?
Studying human diseases
Producing pharmaceuticals
Improving livestock
All of the above
Roiseโ cow known to produce a type of milk which has all the following characteristics
I. protein content of 2.4 g/L
II. human ฮฑ-lactalbumin
III. more nutritionally balanced for human babies than natural cow milk
Which of the above statements are correct?
I only
I and II only
II and III only
I, II, and III
Multicellular organisms that carries a specific genetic change in each cell because of an intervention at the fertilized egg stage is a
Transversion
Transition
Transgenic
Transformant
Consider the following statements about โRosieโI. Rosie is a first transgenic cowII. Rosie produced human protein enriched milkIII. The milk contained the human ฮฑ-lactalbumin and scientist behind the research believes that the milk from the cow could provide an alternative to human breast milkWhich of the statements given above are correct?
I and II
I and III
II and III
I, II and III
Consider the following statements
I. Transgenic animals are more sensitive to the toxic substance than non-transgenic animals
II. Useful biological products can be produced by introducing into transgenic animals the portion of DNA which codes for a particular product
III. Brazzein is a protein produced by a west African plant, Pentadiplandra brazzeana which is approximately 2000 time as sweet as sugar
Which of the statements are given above are correct?
I, II and III
I and II
I and III
None of these
The critical research areas of biotechnology are
I. providing best catalyst as improved organism, usually a microbes or pure enzyme
II. creating optimal conditions by engineering for a catalyst to act
III. down stream processing technologies
IV. Multiple Ovulation Transfer Technology (MOET)
Which of the statements given above the correct?
I and II
I, II and III
II, III and IV
I, II, III and IV
Transgenic plants are
Produced by a somatic embryo in artificial medium
Generated by introducing foreign DNA into a cell and regenerating a plant from that cell
Produced after protoplast fusion in artificial medium
Grown in artificial medium after hybridization in the field