In RNAi, the genes are silenced using:
1. | dsRNA | 2. | ssDNA |
3. | ssRNA | 4. | dsDNA |
The exploitation of bioresources of a nation by multinational companies without authorization from the concerned country is referred to as:
1. | Bioweapon | 2. | Biopiracy |
3. | Bioethics | 4. | Biowar |
Which of the following is true for Golden rice?
1. | It has yellow grains, because of gene introduced from a primitive variety of rice |
2. | It is Vitamin A enriched, with a gene from daffodil |
3. | It is pest resistant, with a gene from Bacillus thuringiensis |
4. | It is drought tolerant, developed using Agrobacterium vector |
What triggers the activation of protoxin to active Bt toxin of Bacillus thuringiensis in bollworms?
1. Acidic pH of the stomach
2. Body temperature
3. Moist surface of midgut
4. Alkaline pH of the gut
In order to obtain virus-free plants through tissue culture the best method is:
1. protoplast culture
2. embryo rescue
3. anther culture
4. meristem culture
Microbes found to be very useful in genetic engineering are:
1. Escherichia coli and Agrobacterium tumefaciens
2. Vibrio cholerae and a tailed bacteriophage
3. Diplococcus sp. and Pseudomonas sp.
4. Crown gall bacterium and caenorhabditis elegans
Golden rice is a promising transgenic crop. When released for cultivation, it will help in:
1. alleviation of vitamin-A deficiency
2. pest resistance
3. herbicide tolerance
4. producing a petrol-like fuel from rice
1. | A cell displaying a foreign antigen used for the synthesis of antigens. |
2. | Production of somaclonal variants in tissue cultures. |
3. | When a piece of RNA that is complementary in sequence is used to stop the expression of a specific gene |
4. | RNpolymerase-producingng DNA |
1. | mosquitoes | 2. | flies |
3. | nematodes | 4. | bollworms |
1. Escherichia
2. Mycobacterium
3. Rhizobium
4. Saccharomyces