What is the application of Somatic Cell Nuclear Transfer Technology ?
- A.Production of biolarvicides
- B.Manufacture of biodegradable plastics
- C.Reproductive cloning of animals
- D.Production of organisms free of diseases
Correct answer
Explanation
The correct answer is C, Reproductive cloning of animals. Somatic cell nuclear transfer, or SCNT, is the technique used to clone an animal. Scientists take an egg cell and remove its nucleus. They then insert the nucleus of a somatic cell, an ordinary body cell such as a skin or udder cell, taken from the animal to be copied. A small electric pulse makes the cell start dividing as if it were a fertilised embryo. The embryo is placed in a surrogate mother, and the young one born carries the same nuclear DNA as the donor. Dolly the sheep, born in Scotland in 1996, was the first mammal cloned from an adult cell this way. Option A is wrong because biolarvicides are made from bacteria such as Bacillus thuringiensis and have nothing to do with nuclear transfer. Option B is wrong because biodegradable plastics are made from plant starch or by microbial fermentation. Option D is wrong because disease-free plants and animals are produced by methods such as meristem culture or careful breeding. Exam tip: SCNT means cloning; Dolly the sheep in 1996 was its first famous result.
Practice Questions
View allIn India, it is legally mandatory for which of the following to report on cyber security incidents? 1. Service providers 2. Data centres 3. Body corporate Select the correct answer using the code given below:
- A.1 only
- B.1 and 2 only
- C.3 only
- D.1, 2 and 3
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All three are legally bound to report cyber security incidents to CERT-In, the Indian Computer Emergency Response Team. CERT-In works under Section 70B of the Information Technology Act, 2000 as the national agency for incident response.
Read the full explanation →Consider the following statements : The Mangalyaan launched by ISRO 1. is also called the Mars Orbiter Mission 2. made India the second country to have a spacecraft orbit the Mars after USA 3. made India the only country to be successful in making its spacecraft orbit the Mars in its very first attempt Which of the statements given above is/are correct?
- A.1 only
- B.2 and 3 only
- C.1 and 3 only
- D.1, 2 and 3
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Mangalyaan is the popular name of ISRO's Mars Orbiter Mission, and India reached Mars orbit on its first attempt, but it was not the second country to do so.
Read the full explanation →Organic Light Emitting Diodes (OLEDs) are used to create digital display in many devices. What are the advantages of OLED displays over Liquid Crystal displays ? 1. OLED displays can be fabricated on flexible plastic substrates. 2. Roll-up displays embedded in clothing can be made using OLEDs. 3. Transparent displays are possible using OLEDs. Select the correct answer using the code given below:
- A.1 and 3 only
- B.2 only
- C.1, 2 and 3
- D.None of the above statements is correct
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All three are real advantages of OLEDs, and they follow from the fact that each OLED pixel makes its own light.
Read the full explanation →India is an important member of the 'International Thermonuclear Experimental Reactor'. If this experiment succeeds, what is the immediate advantage for India?
- A.It can use thorium in place of uranium for power generation
- B.It can attain a global role in satellite navigation
- C.It can drastically improve the efficiency of its fission reactors in power generation
- D.It can build fusion reactors for power generation
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ITER is an experiment to prove that nuclear fusion can work as a large-scale energy source, and every member shares its technology.
Read the full explanation →With reference to Non-Fungible Tokens (NFTs), consider the following statements : 1. They enable the digital representation of physical assets. 2. They are unique cryptographic tokens that exist on a blockchain. 3. They can be traded or exchanged at equivalency and therefore can be used as a medium of commercial transactions. Which of the statements given above are correct?
- A.1 and 2 only
- B.2 and 3 only
- C.1 and 3 only
- D.1,2 and 3
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NFTs are unique blockchain tokens that can represent an asset, but being non-fungible they cannot be swapped one-for-one like money.
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