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494 questions in this collection · Page 21 of 50
Question 201 of 494
📘 CLASS XII
Biotechnology And Its Applications
The nutrient medium must provide inorganic salts, vitamins, amino acids and growth regulators like auxins, ________, etc.
Growth regulators like auxins and cytokinins must be provided.
Question 202 of 494
📘 CLASS XII
Biotechnology And Its Applications
The process of somatic hybridisation results in new hybrids, such as the ________, combining characteristics from two different plants.
The fusion of tomato and potato protoplasts resulted in the pomato.
Question 203 of 494
📘 CLASS XII
Biotechnology And Its Applications
GM plants have been used to create tailor-made plants to supply alternative resources to industries, in the form of starches, fuels and ________.
GM has been used to create tailor-made plants to supply starches, fuels and pharmaceuticals.
Question 204 of 494
📘 CLASS XII
Biotechnology And Its Applications
Bt toxin genes expressed in plants effectively create a ________, providing resistance to insects.
The expression of the Bt toxin gene in plants created a bio-pesticide.
Question 205 of 494
📘 CLASS XII
Biotechnology And Its Applications
Bt strains produce proteins that kill certain insects, including ________ (beetles).
Coleopterans (beetles) are killed by Bt proteins.
Question 206 of 494
📘 CLASS XII
Biotechnology And Its Applications
The Bt toxin proteins exist as protein ________ during a particular phase of the growth of Bacillus thuringiensis.
B. thuringiensis forms protein crystals during a particular phase of their growth.
Question 207 of 494
📘 CLASS XII
Biotechnology And Its Applications
The binding of the activated Bt toxin to midgut epithelial cells creates ________ that cause cell swelling and lysis.
The activated toxin creates pores that cause cell swelling and lysis.
Question 208 of 494
📘 CLASS XII
Biotechnology And Its Applications
In the transgenic host plant designed to resist nematodes, the introduced DNA produced both sense and ________ RNA.
The introduction of DNA was such that it produced both sense and anti-sense RNA.
Question 209 of 494
📘 CLASS XII
Biotechnology And Its Applications
The use of insulin isolated from non-human animal sources often caused patients to develop ________ or other types of reactions to the foreign protein.
Insulin from an animal source caused some patients to develop allergy or other types of reactions.
Question 210 of 494
📘 CLASS XII
Biotechnology And Its Applications
The main challenge for production of insulin using rDNA techniques was getting insulin assembled into a ________ form.
The main challenge for production of insulin using rDNA techniques was getting insulin assembled into a mature form.