Question map
What is the application of Somatic Cell Nuclear Transfer Technology ?
Explanation
Somatic Cell Nuclear Transfer (SCNT) technology allows the generation of clones of animals about which substantial knowledge of their performance exists.[1] The technique involves deposition of a somatic cell into an enucleated oocyte resulting in an embryo[2], which is then implanted into a foster or surrogate mother.[3] Somatic cells can be cryopreserved and used in SCNT for reproductive cloning, which has been successful for many domestic mammalian species (e.g. cattle, sheep, horses, pigs and goats).[4] Since the birth of Dolly in 1996, cloning has been achieved for various species, and up to 2004, about 1,500 calves had been produced through SCNT.[5] This technology is specifically designed for reproductive cloning and has no application in producing biolarvicides, manufacturing biodegradable plastics, or directly producing disease-free organisms. Therefore, option C is the correct answer.
Sources- [1] https://www.fao.org/4/j8959e/j8959e.pdf
- [2] https://www.fao.org/fileadmin/user_upload/animal_genetics/docs/CGRFA-18-21-10_2_Inf1_forPDF.pdf
- [3] https://www.fao.org/4/j8959e/j8959e.pdf
- [4] https://www.fao.org/fileadmin/user_upload/animal_genetics/docs/CGRFA-18-21-10_2_Inf1_forPDF.pdf
- [5] https://www.fao.org/4/i2300e/i2300e03.pdf
PROVENANCE & STUDY PATTERN
Guest previewThis is a classic 'Term-Definition' match. SCNT is simply the technical name for the method used to create 'Dolly the Sheep'. The strategy is simple: when reading about a famous scientific outcome (Cloning), always memorize the specific technical process behind it.
This question can be broken into the following sub-statements. Tap a statement sentence to jump into its detailed analysis.
- Statement 1: Is Somatic Cell Nuclear Transfer (SCNT) technology used for production of biolarvicides?
- Statement 2: Is Somatic Cell Nuclear Transfer (SCNT) technology used for manufacture of biodegradable plastics?
- Statement 3: Is Somatic Cell Nuclear Transfer (SCNT) technology used for reproductive cloning of animals?
- Statement 4: Is Somatic Cell Nuclear Transfer (SCNT) technology used for production of organisms free of diseases?
Describes tissue culture where cells or tissues are removed and grown in artificial media to produce new organisms or many copies (callus → plantlets).
A student could extend this by noting tissue/cell-based propagation techniques are used to mass-produce biological materials and then ask whether SCNT is another cell-based method that could analogously produce organisms that serve as biolarvicides.
Explains that multicellular organisms have specialised reproductive strategies and that reproduction can be engineered by manipulating specific cell types.
One could use this to reason that cloning methods (like SCNT) alter reproductive processes and then check whether cloned organisms are used to generate organisms or secretions employed as larvicides.
Discusses DNA copying, cellular apparatus, and that cellular division and organisation are required for producing viable copies—highlighting that manipulating nuclei and cells affects organismal replication.
This provides a conceptual link to nuclear transfer (moving nuclei between cells) and suggests checking whether such nuclear manipulations are applied to create organisms or cell-lines used in biolarvicide production.
Summarises the Cartagena Protocol governing movement of Living Modified Organisms (LMOs) from modern biotechnology, implying regulatory attention to biotechnology-derived organisms.
A student could use this to pursue whether products labelled as biolarvicides fall under LMOs and whether techniques like SCNT (a modern biotech method) are mentioned in regulatory or product literature for such biocontrol agents.
Also states the objective of protecting against adverse effects of LMOs from modern biotechnology and regulating their import/export.
This supports checking international/regulatory sources to see if SCNT-derived organisms are categorized among LMOs used as biolarvicides, enabling verification or elimination of the statement.
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