Question
Download Solution PDFWhich of the following is not a product of recombinant DNA technology?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is Dolly.
Concept:
- Recombinant DNA technology is the process of combining DNA molecules from two different organisms and inserting them into a host organism to create new genetic combinations.
- Process of Recombinant DNA technology
- Recombinant DNA technology involves the following steps:
- Isolation of DNA.
- Fragmentation of DNA by restriction endonucleases.
- isolation of a desired DNA fragment.
- Amplification of the gene of interest.
- ligation of the DNA fragment into a vector.
- Insertion of recombinant DNA into the host.
- Culturing the host cells on a suitable medium at a large scale.
- Extraction of the desired gene product.
- Downstream processing of the products as finished product, ready for marketing.
Explanation:
- Recombinant DNA technology is widely used in agriculture to create genetically modified organisms such as Flavr Savr tomatoes, and Bt-cotton to protect the plant from ball worms, among other things.
- Cloning is the production of an exact copy of a cell, another living part, or an entire organism.
- Cloning of an animal was successfully performed for the first time by Ian Wilmut and his colleagues at the Roslin Institute in Edinburgh, Scotland.
- They successfully cloned a sheep named Dolly.
- Dolly, the first cloned mammal, was born on July 5, 1996.
Thus, Dolly is not a product of recombinant DNA technology.
Additional InformationGlo-fish:
- Glo-fish are genetically modified fish created with Recombinant DNA technology.
Bt-cotton:
- Some strains of Bacillus thuringiensis produce proteins that kill some insects like lepidopterans (tobacco budworm, armyworm), coleopterans (beetles) and dipterans (flies, mosquitoes).
- Bacillus thuringiensis forms protein crystals which contain toxic insecticidal protein.
Flavr savr:
- Flavr Savr, a genetically modified tomato, was the first commercially grown genetically engineered food to receive a human consumption licence.
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