In Bt cotton, the Bt toxin present in plant tissue as pro-toxin is converted into active toxin due to:
The first human hormone produced by recombinant DNA technology is:
1. Insulin
2. Estrogen
3. Thyroxin
4. Progesterone
Which of the following Bt crops is being grown in India by the farmers?
1. | Cotton | 2. | Brinjal |
3. | Soybean | 4. | Maize |
Consumption of which one of the following foods can prevent the kind of blindness associated with vitamin-A deficiency?
1. | Flaver savr tomato | 2. | Canolla |
3. | Golden rice | 4. | Bt-brinjal |
A single strand of nucleic acid tagged with a radioactive molecule is called:
1. | Vector | 2. | Selectable marker |
3. | Plasmid | 4. | Probe |
The genetically-modified (GM) brinjal in India has been developed for:
1. insect-resistance
2. enhancing self-life
3. enhancing mineral content
4. drought-resistance
1. fungi
2. viruses
3. insects
4. nematodes
1. | mice | 2. | cow |
3. | pig | 4. | fish |
Genetic engineering has been successfully used for producing:
1. | transgenic mice for testing the safety of polio vaccine before use in humans |
2. | transgenic models for studying new treatments for certain cardiac disease |
3. | transgenic Cow-Rosie which produces high-fat milk for making ghee |
4. | Animals like bulls for farm work as they have super power |
Some of the characteristics of Bt cotton are:
1. | long fibre and resistance to aphids |
2. | medium yield, log fibre, and resistance to beetle pests |
3. | high yield and production of toxic protein crystals which kill dipteran pests |
4. | high yield and resistance to bollworms |