Biology
Genetic Engineering and Biotechnology
2,033 Questions
Genetic engineering and biotechnology involve modifying organism DNA to develop transgenic crops, medical treatments, and industrial solutions. This field covers essential techniques like hybridoma technology, molecular markers, and gene transfer in eukaryotic cells. These biology topics are essential for aspirants preparing for various competitive examinations.
Genetic engineering techniquesTransgenic organismsIndustrial biotechnologyGMOs and bioremediation
Genetic Engineering and Biotechnology Questions
Which of the following microorganisms is commonly used for the production of bioplastics?
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Escherichia coli
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Saccharomyces cerevisiae
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Bacillus subtilis
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Pseudomonas putida
D
Correct answer
Explanation
Pseudomonas putida is a versatile bacterium known for its ability to produce bioplastics, such as polyhydroxyalkanoates (PHAs), from renewable carbon sources.
In the context of biotechnology in materials science, what is the primary role of enzymes?
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Energy production
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Genetic modification
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Bioremediation
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Catalyzing biochemical reactions
D
Correct answer
Explanation
Enzymes play a crucial role in biotechnology by catalyzing specific biochemical reactions, enabling the efficient production and modification of materials.
Which biotechnology technique involves the use of microorganisms to produce materials with specific properties?
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Genetic engineering
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Bioremediation
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Bioprospecting
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Microbial fermentation
D
Correct answer
Explanation
Microbial fermentation is a biotechnology technique where microorganisms are used to convert substrates into desired products through metabolic processes. This process is commonly employed for the production of bio-based materials with specific properties.
Which biotechnology technique involves the manipulation of genetic material to modify the properties of microorganisms?
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Bioremediation
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Bioprospecting
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Genetic engineering
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Microbial fermentation
C
Correct answer
Explanation
Genetic engineering is a biotechnology technique that involves the manipulation of genetic material to alter the characteristics of organisms, including microorganisms. This technique is used to enhance the production of desired materials or introduce new functionalities.
In the context of biotechnology in materials science, what is bioprospecting?
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The study of microorganisms for industrial applications
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The exploration of natural resources for bioactive compounds
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The production of biofuels from renewable sources
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The development of bio-based materials from plant biomass
B
Correct answer
Explanation
Bioprospecting involves the exploration of natural resources, such as plants, animals, and microorganisms, to identify and extract bioactive compounds with potential applications in various fields, including materials science.
Which biotechnology technique involves the use of enzymes to break down and recycle materials?
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Genetic engineering
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Bioremediation
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Bioprospecting
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Enzymatic degradation
D
Correct answer
Explanation
Enzymatic degradation is a biotechnology technique that utilizes enzymes to break down and recycle materials. Enzymes are used to catalyze specific chemical reactions, enabling the efficient degradation of various materials, including organic waste and plastics.
What is the term for the complete set of genetic material in an organism?
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Genome
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Proteome
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Transcriptome
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Metabolome
A
Correct answer
Explanation
The genome encompasses all the DNA molecules, including genes and non-coding regions, found within an organism.
Which of the following is an example of a personalized medicine approach that tailors treatments based on an individual's genetic makeup?
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Genomics
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Proteomics
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Metabolomics
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Pharmacogenomics
D
Correct answer
Explanation
Pharmacogenomics involves studying how an individual's genetic makeup influences their response to medications, enabling personalized drug selection and dosage.
Which of the following is an example of a personalized medicine approach that tailors treatments based on an individual's microbiome?
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Genomics
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Proteomics
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Metabolomics
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Microbiome Medicine
D
Correct answer
Explanation
Microbiome Medicine focuses on tailoring treatments and interventions based on an individual's unique microbiome to improve their health and well-being.
What is the ethical dilemma posed by genetically modified (GM) crops?
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Potential health risks
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Environmental impact
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Corporate control of the food system
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All of the above
D
Correct answer
Explanation
GM crops raise ethical concerns regarding potential health risks, environmental impact, and the concentration of power in the hands of a few corporations.
What is the primary function of genetically modified organisms (GMOs) in the food industry?
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Improved crop yield
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Enhanced nutritional content
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Resistance to pests and diseases
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Reduced environmental impact
C
Correct answer
Explanation
GMOs are often engineered to possess resistance to pests and diseases, which can lead to increased crop yields and reduced reliance on pesticides and herbicides.
Which of the following is a potential ethical concern associated with genetic engineering?
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The potential for genetic engineering to be used to create designer babies.
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The potential for genetic engineering to be used to cure diseases.
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The potential for genetic engineering to be used to improve crop yields.
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The potential for genetic engineering to be used to create new forms of life.
A
Correct answer
Explanation
The potential for genetic engineering to be used to create designer babies is a major ethical concern, as it raises questions about the rights of the child and the potential for eugenics.
Which type of immunotherapy involves the use of genetically modified bacteria to target and kill cancer cells?
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Adoptive T-cell therapy
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Checkpoint inhibitors
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Bacterial therapy
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Cancer vaccines
C
Correct answer
Explanation
Bacterial therapy involves the use of genetically modified bacteria to target and kill cancer cells. These bacteria are engineered to selectively infect and destroy cancer cells while leaving healthy cells unharmed.
What is the term for the process of transferring genetic material from one organism to another?
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Gene Therapy
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Genetic Engineering
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Recombinant DNA Technology
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Transgenesis
A
Correct answer
Explanation
Gene Therapy involves transferring genetic material into a patient's cells to treat genetic disorders or diseases by correcting faulty genes or introducing functional ones.
Which technology is used to develop climate-resilient crops?
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Genetic Engineering
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Hydroponics
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Aquaponics
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Permaculture
A
Correct answer
Explanation
Genetic engineering is used to develop climate-resilient crops that can withstand extreme weather conditions, pests, and diseases, ensuring food security in a changing climate.