Tag: gm crops

Quizzes (0) Questions (200)

Questions Related to gm crops

Multiple choice botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

Transgenic plant of tobacco was mainly used to produce

  1. Antibody

  2. Enhance the tolerance to water stress

  3. Enhance flowering

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The tobacco plant was genetically modified by introducing a gene to produce antibodies. The plant was introduced with the gene for producing antibodies against the rabies virus which are similar to the antibodies produced in the humans. The antibodies from the plant can be purified and used as injections or vaccines. These vaccines help in providing immunity against the rabies virus. 

The tobacco plants can also be modified to survive under the conditions of stress. The plants can bear extreme conditions like water stress, salinity and heat stress. 
Thus, the correct answer is option D. 

Multiple choice botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

Which of the following attributes can be improved in ornamental plants?

  1. Regulation of flowering

  2. Weed control

  3. Promotion of vegetative growth

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Ornamental plants are known for the decorative purposes in gardens and landscape design projects, as houseplants, for cut flowers and specimen display.
The regulation of flower can be improved in ornamental plants through physical alteration of day length or modification of hormone biosynthesis and metabolism.
Weeds can be controlled by resistance to a broad spectrum herbicide like glyphosate which would allow the protection of young plants from weed seedlings in new areas and prevent damage from spot- spraying of weeds in established beds.
The vegetative growth of the ornamental plants can be promoted by using various growth regulators.
So, the correct answer is option D.
Multiple choice botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

Salt tolerant transgenic has been developed for

  1. Brinjal

  2. Grape

  3. Potato

  4. Tomato
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
A genetically engineered tomato plant that thrives in salty irrigation water and may hold the key to one of agriculture's greatest dilemmas has been developed by plant biologists at the University of California, Davis, and the University of Toronto.
As the first truly salt-tolerant crop, these tomatoes offer hope that other crops can also be genetically modified for planting in many areas of the world that have salty irrigation water and salt-damaged soils.
Since environmental stress due to salinity is one of the most serious factors limiting the productivity of crops, this innovation will have significant implications for agriculture worldwide.
Multiple choice botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

Central Rice research institute (CRRI) is located in

  1. Coimbatore

  2. Cuttack

  3. Shimla

  4. Trivendrum
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

CRRI develops new rice varieties and rice crop management techniques that help rice farmers improve the yield and quality of their rice in an environmentally sustainable way. The Institute works with its public and private sector partners in national agricultural research and extension systems in major rice-growing countries to do research, training, and knowledge transfer. It is situated in Cuttack, India. Thus, option B is correct.

Multiple choice botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

Which among the following is a tumour inducing plasmid widely used in the production of transgenic plants?

  1. Escherichia coli

  2. Bacillus thuringiensis

  3. Staphylococcus aureus

  4. Agrobacterium tumefaciens
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Plant transformation mediated by the soil-plant pathogen Agrobacterium tumefaciens has become the most used method for plant transformation. A. tumefaciens naturally infects the wound sites in dicotyledonous plant causing the formation of the crown gall tumours. A. tumefaciensis is capable of transferring a particular DNA segment (T-DNA) of the tumour-inducing (Ti) plasmid into the nucleus of infected cells where it is subsequently integrated into the host genome and transcribed, causing the crown gall disease.

Multiple choice botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

'Himgiri' developed by hybridisation and selection for disease resistance against rust pathogens is a variety of _________.

  1. Wheat

  2. Chilli

  3. Maize

  4. Sugarcane
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Himgiri is a hybrid species of wheat which is resistant to crop diseases like leaf rust, hill bunt and many more, that's why this particular species is very popular in the Indian agriculture productivity sector.
So, the correct answer is 'Wheat'
Multiple choice botany biotechnology and its applications biotechnology in agriculture gm crops transgenic organisms

Increased flavourful shelf life of Tomato has been achieved by ______________.

  1. Developing better storage technique

  2. Reducing activity of enzyme polygalactourinase

  3. Promoting activity of enzyme polygalacturonase

  4. Enhancing epidermal growth factor
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The Flavr Savr tomato was engineered by antisense technology to reduce the expression of polygalacturonase, an enzyme that breaks down pectin and causes softening.