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 |
An improved variety of transgenic basmati rice:
1. | does not require chemical fertilizers and growth hormones |
2. | gives high yield and is rich in vitamin-A |
3. | is completely resistant to all insect pests and diseases of paddy |
4. | gives high yield but has no characteristic aroma |
The bacterium Bacillus thuringiensis is widely used in contemporary biology as a/an:
1. indicator of water pollution
2. insecticide
3. agent for production of dairy products
4. source of industrial enzyme
The genetic defect-Adenosine Deaminase (ADA) deficiency may be cured permanently by:
1. | periodic infusion of genetically engineered lymphocytes having functional ADA cDNA |
2. | administering adenosine deaminase activators |
3. | introducing bone marrow cells producing ADA into cells at early embryonic stages |
4. | invitro cell culture therapy |
Which one of the following is commonly used in the transfer of foreign DNA into crop plants?
1. Trichoderma harzianum
2. Meloidogyne incognita
3. Agro bacterium tumefaciens
4. Penicillium expansum
What is true about Bt toxin?
1. | the inactive protoxin gets converted into active form in the insect gut |
2. | Bt protein exists as active toxin in the Bacillus |
3. | The activated toxin enters the ovaries of the pest to sterilize it and thus prevent its multiplication |
4. | the concerned Bacillus has antitoxins |
Transgenic plants are:
1. | produced by a somatic embryo in artificial medium |
2. | generated by introducing foreign DNA into a cell and regenerating a plant from that cell |
3. | Produced after protoplast fusion in artificial medium |
4. | grown in artificial medium after hybridization in the field |
1. | Flavr savr tomatoes |
2. | Starlink maize |
3. | Bt soybean |
4. | Golden rice |