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494 questions in this collection · Page 29 of 50
Question 281 of 494
📘 CLASS XII
Biotechnology And Its Applications
Basmati rice has been grown in India for ________.
Basmati has been grown for centuries in India, with reference in ancient texts.
Question 282 of 494
📘 CLASS XII
Biotechnology And Its Applications
The American company that patented Basmati rice in 1997 received patent rights through the US Patent and ________ Office.
The patent was granted through the US Patent and Trademark Office.
Question 283 of 494
📘 CLASS XII
Biotechnology And Its Applications
The problem of increasing food production following the Green Revolution was exacerbated by the high cost of agrochemicals for farmers in the ________ world.
Agrochemicals are often too expensive for farmers in the developing world.
Question 284 of 494
📘 CLASS XII
Biotechnology And Its Applications
Genetically modified crops help reduce post harvest losses and increase tolerance to ________ stresses.
GM crops are more tolerant to abiotic stresses (cold, drought, salt, heat).
Question 285 of 494
📘 CLASS XII
Biotechnology And Its Applications
Bt toxin is effective against Lepidopterans, Coleopterans, and ________.
Bt proteins kill lepidopterans, coleopterans, and dipterans.
Question 286 of 494
📘 CLASS XII
Biotechnology And Its Applications
RNA interference (RNAi) is a method of cellular ________ in all eukaryotic organisms.
RNAi takes place in all eukaryotic organisms as a method of cellular defense.
Question 287 of 494
📘 CLASS XII
Biotechnology And Its Applications
Before Eli Lilly successfully produced recombinant human insulin, the insulin used for diabetic patients was extracted from the pancreas of slaughtered cattle and ________.
Insulin was earlier extracted from cattle and pigs.
Question 288 of 494
📘 CLASS XII
Biotechnology And Its Applications
Mature insulin consists of two short polypeptide chains, Chain A and Chain B, linked by ________ bridges.
Chains A and B are linked by disulphide bridges.
Question 289 of 494
📘 CLASS XII
Biotechnology And Its Applications
Gene therapy involves replacing a defective mutant allele with a functional one or gene targeting, which involves gene ________.
Gene therapy involves gene targeting which involves gene amplification.
Question 290 of 494
📘 CLASS XII
Biotechnology And Its Applications
PCR is routinely used for detecting very low concentrations of pathogens when the disease symptoms are not yet ________.
PCR detects pathogens even when symptoms are not yet visible.