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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Find out what the various components of the medium used for propagation of an explant in vitro are?

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प्रश्न

Find out what the various components of the medium used for propagation of an explant in vitro are?

लघु उत्तरीय
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उत्तर

The medium for in vitro explant propagation includes a carbon source (e.g., sucrose) for energy; agar as a solidifying agent; macronutrients (e.g., ammonium sulphate, calcium nitrate) and micronutrients (e.g., boric acid, zinc sulphate) for essential elements; vitamins and essential amino acids for growth; and plant hormones (auxins, cytokinins) to stimulate growth and differentiation. The pH is maintained around 5.8 to 5.5.

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अध्याय 10: Biotechnology and its Applications - EXERCISES [पृष्ठ १८६]

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एनसीईआरटी Biology [English] Class 12
अध्याय 10 Biotechnology and its Applications
EXERCISES | Q 3. | पृष्ठ १८६

संबंधित प्रश्न

How did the process of RNA interference help to control the nematode from infecting the roots of tobacco plants?


What is a GMO?


What is the major advantage of producing plants by micropropagation?


GM crops especially Bt crops are known to have higher resistance to pest attacks. To substantiate this an experimental study was conducted in 4 different farmlands growing Bt and non Bt-Cotton crops. The farm lands had the same dimensions, fertility and were under similar climatic conditions. The histogram below shows the usage of pesticides on Bt crops and non-Bt crops in these farm lands.

  1. Which of the above 4 farm lands has successfully applied the concepts of Biotechnology to show better management practices and use of agrochemicals? If you had to cultivate, which crop would you prefer (Bt or Non- Bt) and why?
  2. Cotton Bollworms were introduced in another experimental study on the above farm lands wherein no pesticide was used. Explain what effect would a Bt and Non Bt crop have on the pest.

A person deficient in the rhodopsin should be advised to take more of:


Bt brinjal is an example of transgenic crops. In this Btrefers to ______.


Bt toxin obtained from ______.


With the help of a suitable example, explain how cry-proteins acts as a biological pesticide.


"RNA interference has been used to produce transgenic tobacco plants to protect them from the infestation by specific nematodes." Explain the novel strategy exploited by the biotechnologists.


Which one of the following bacteria are used to produce insect resistant transgenic cotton?


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