Genetically Modified Crops

Q. Cultivation of Bt cotton has been much the news. The prefix “Bt” means

1. “Barium - treated” cotton seeds
2. “Bigger thread” variety of cotton with better tensile strength
3. Production by “biotechnology” using restriction enzymes and ligases
4. Carrying an endotoxin gene from Bacillus thuringiensis

Q. A crop variety improvement technique in which the desired gene is introduced into a particular plant is known as ___.

1. biotechnology
2. genetic engineering
3. cross breeding
4. mixed cropping

Q. Bt-cotton is a

1. Intergenic variety
2. Inter-specific variety
3. Genetically modified variety.
4. Intra specific variety

Q. Cultivation of Bt cotton has been much the news. The prefix “Bt” means

1. “Barium - treated” cotton seeds
2. “Bigger thread” variety of cotton with better tensile strength
3. Production by “biotechnology” using restriction enzymes and ligases
4. Carrying an endotoxin gene from Bacillus thuringiensis

Q. The activation of cry proteins results in the______

1. Death of the cotton
2. Death of the worm
3. Death of the bacteria
4. Death of the virus

Q. is a genetically modified plant.

1. Bt. cotton
2. IR8
3. Triticale

Q. Which of the following is a result of natural selection?

1. Seedless grapes
2. Insecticide resistant mosquitoes
3. Disease resistant crop plants
4. Cattle for high milk yield