This set of Basic Biotechnology Multiple Choice Questions & Answers (MCQs) focuses on “Three-Component Central Core”.
1. Most of the biotechnological processes have how many component central core?
a) Three component central core
b) Two component central core
c) Five component central core
d) Eight component central core
View Answer
Explanation: Many biotechnological processes may be considered as having a three-component central core. It includes obtaining best catalyst, introducing favorable environment conditions and downstream processing. Downstream processing is a very important and last step.
2. What is the most stable and convenient form of catalyst for biotechnological process?
a) A whole organism
b) Cell organelle
c) Nucleic acid
d) Phosphate group
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Explanation: In majority of examples developed to date, the most effective, stable and convenient form for the catalyst for a biotechnological process is a whole organism. This is the reason that so much biotechnological process revolves around microbial process. Because a whole microorganism is small and easy to culture.
3. Which among the following has immense gene pool and offers almost unlimited synthetic and degradative potential?
a) Microorganisms
b) Mitochondrion
c) Chloroplast
d) Plasmid
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Explanation: Microorganisms have an immense gene pool. It offers them almost unlimited synthetic and degradative potential. Microorganisms can possess extremely rapid growth rates far in any of the higher organisms such as plants and animals.
4. Manipulated and improved organisms must be maintained in substantially unchanged form, for biotechnological processes.
a) True
b) False
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Explanation: Biotechnological processes are very specific. So, manipulated and improved organisms must be maintained in substantially unchanged form. This involves another spectrum of techniques for the preservation of organisms.
5. Which among the following is the last component of three-component central core of biotechnology?
a) Isolation of vector DNA
b) Sterilization
c) Fermentation
d) Downstream processing
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Explanation: The third part is downstream processing. It is also the last part. It is concerned with the separation and purification of an essential product or products from fermentation process.
6. Initial separation of the bioreactor broth or medium into liquid phase and a solid phase, and subsequent concentration and purification of product can also be termed as ___________
a) Upstream processing
b) Downstream processing
c) DNA sequencing
d) Fermentation
View Answer
Explanation: Downstream processing is primarily concerned with initial separation of bioreactor broth. Processing usually involves more than one stage. Purification is followed by processing.
7. Brewing comes under ________
a) enzyme technology
b) bioprocess technology
c) waste technology
d) environmental technology
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Explanation: The most important area of biotechnology with extensive development in progress with new products envisaged. It includes brewing, antibiotics, mammalian cell culture and many more. Novel fermenters were designed.
8. Biotechnology does not provide any new way of raw material processing.
a) True
b) False
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Explanation: Biotechnology provides new methodologies in the processing of raw materials. It includes microbial methods, R-DNA Technology and molecular methods. Microbial methods are generally dominant.
9. Which among the following is not an aim of the European Federation of Biotechnology?
a) To advance biotechnology for public health
b) To promote awareness, communication and collaboration in all fields of biotechnology
c) To promote public understanding of biotechnology
d) To use biotechnology for commercial use and make profit out of it
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Explanation: The first aim of EFB is, to advance biotechnology for public health. Second step is to promote awareness. Other aims include communication and collaboration in all fields of biotechnology, to promote public understanding of biotechnology, and to provide governmental and super national bodies with information and informed opinions on biotechnology.
10. How long has genetic modification been used by mankind to improve plants and animals by selective breeding?
a) Over 200000 years
b) Over 10000 years
c) Over 300000 years
d) Over 10000000 years
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Explanation: Genetic modification has been used by mankind for over 10000 years. It was to improve plants and animals by selective breeding. Only within the last 50 years has this process used new methods, such as polyploidization, mutagenesis and x-rays, to achieve changes in genetic composition.
11. What can you interpret from the following diagram?
a) Biotechnology has wide array of relevant fields
b) Biotechnology has not got various applications
c) Scope of biotechnology is limited
d) Biotechnology is specific and has few organization
View Answer
Explanation: Biotechnology is not a single scientific field. It can draw upon a wide array of relevant fields. It is a range enabling technologies that will find significant application in many industrial sectors.
12. Life sciences affect over 30% of global economic turnover.
a) True
b) False
View Answer
Explanation: Life sciences affect over 30% of global economic turnover. This is by way of healthcare, food and energy, agriculture and forestry. Economy and market strategies are sometimes affected by the actions of biotechnological processes.
Sanfoundry Global Education & Learning Series – Basic Biotechnology.
To practice all areas of Basic Biotechnology, here is complete set of Multiple Choice Questions and Answers.
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