Astronauts may use which technique to grow fruits and vegetables ?
Correct answer: D. Hydroponic culture technique
- A. Tissue culture techniques
- B. Cloning
- C. Pasterisation
- D. Hydroponic culture technique
Explanation
Hydroponic culture grows plants without soil by supplying water, mineral nutrients and suitable environmental conditions directly to the roots, making it useful in controlled spacecraft systems. Tissue culture and cloning produce plants from cells or tissues, but they are not the technique primarily meant for growing crops in space.
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Biotechnology applies genetic engineering, cell culture and recombinant DNA methods to medicine and public health. The material includes production of insulin, vaccines and antibiotics, diagnostic techniques, gene therapy, genetically modified organisms and the ethical concerns surrounding manipulation of human genes.
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