First transgenic plant was tobacco and it contain resistant gene for -a)Insect resistantb)Herbicide resistantc)Pest resistantd)Frost resistantCorrect answer is option 'B'. Can you explain this answer?

Question

Answer

In 1987, 'Plant Genetic Systems', founded by Marc Van Montagu and Jeff Schell, was the first company to genetically engineer insect-resistant (tobacco) plants by incorporating genes that produced insecticidal proteins from Bacillus thuringiensis (Bt). So, the correct answer is 'Herbicide resistance'.

Answer

The term genetic engineering is applied to geneticmodifications made using biotechnology. The first plant produced in that way came in 1982, an antibiotic-resistant tobacco plant. The first field trials occurred in France and the USA in 1986, using tobacco plants engineered for herbicide resistance

Answer

First genetically modified plant, tobacco and was engineered for herbicide resistance. Tobacco plant was produced in 1982.

Answer

Introduction
The first transgenic plant was tobacco, and it contained a resistant gene for herbicide resistance. Transgenic plants are genetically modified organisms that have been altered by the introduction of foreign genes into their DNA. The insertion of specific genes allows these plants to exhibit desirable traits, such as resistance to certain pests, diseases, or environmental conditions.

Explanation
- Transgenic Plants: Transgenic plants are created by introducing foreign genes into their DNA through a process called genetic engineering. This technique allows scientists to manipulate the genetic makeup of plants and introduce specific traits or characteristics.

- Herbicide Resistance: Herbicides are chemicals used to control or eliminate unwanted weeds in agricultural fields. However, these herbicides can also harm desirable plants. By introducing a herbicide-resistant gene into a plant's DNA, scientists can create transgenic plants that can withstand the application of herbicides without being affected.

- First Transgenic Plant: The first transgenic plant created was tobacco, and it contained a gene that conferred resistance to herbicides. This breakthrough was achieved by researchers in the early 1980s. They inserted a gene called the EPSPS gene from the bacterium Agrobacterium tumefaciens into the tobacco plant's DNA. The EPSPS gene encodes for an enzyme that is resistant to a specific herbicide called glyphosate.

- Advantages of Herbicide-Resistant Transgenic Plants: Herbicide-resistant transgenic plants have several advantages. Farmers can use specific herbicides to control weeds without harming their crops, increasing agricultural productivity. These plants also reduce the need for manual labor in weed control, making farming more efficient.

- Applications: The development of herbicide-resistant transgenic plants has paved the way for the creation of other transgenic crops with desirable traits. Today, several genetically modified crops, such as soybeans, corn, and cotton, have been developed with herbicide-resistant traits. These crops allow farmers to effectively control weeds and improve crop yields.

Conclusion
The first transgenic plant, tobacco, contained a resistant gene for herbicide resistance. This breakthrough opened doors for the development of genetically modified crops with desirable traits, such as resistance to pests, diseases, and harsh environmental conditions. Herbicide-resistant transgenic plants have significantly contributed to improving agricultural practices and increasing crop productivity.

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