Q. No.Plants genetically engineered to make them resistant to glyphosate was an important achievement because:
1.
glyphosate promotes frost damage
2.
glyphosate encourages the production of fruit that is lower in protein
3.
glyphosate is the active ingredient in herbicides
4.
glyphosate prevents the transfer of genes into the plants
Production of transgenic plants is easier than the production of transgenic animals mainly because:
| 1. | Plant cells can grow in cell culture. |
| 2. | Plant cells have a lower number of potentially lethal genes. |
| 3. | Plant cells are totipotent. |
| 4. | Plants do have cancers. |
Which of the following statements is not correct?
| 1. | The proinsulin has an extra peptide called C-peptide |
| 2. | Functional insulin has A and B chains linked together by hydrogen bonds. |
| 3. | Genetically engineered insulin is produced in E. Coli. |
| 4. | In man, insulin is synthesized as proinsulin. |
Bt cotton variety that was developed by the introduction of toxin gene of Bacillus thuringiensis (BT) is resistant to:
2. Plant nematodes
3. Insect predators
4. Insect pests
Match the organism with its use in biotechnology.
| (a) | Bacillus thuringiensis | (i) | Cloning vector |
| (b) | Thermus aquaticus | (ii) | Construction of first rDNA molecule |
| (c) | Agrobacterium tumefaciens | (iii) | DNA polymerase |
| (d) | Salmonella typhimurium | (iv) | Cry proteins |
Select the correct option from the following:
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (iii) | (i) | (ii) |
| 2. | (iii) | (ii) | (iv) | (i) |
| 3. | (iii) | (iv) | (i) | (ii) |
| 4. | (ii) | (iv) | (iii) | (i) |
Match the following columns and select the correct option.
| Column-I | Column-II | ||
| a. | Bt cotton | (i) | Gene therapy |
| b. | Adenosine deaminase deficiency | (ii) | Cellular defense |
| c. | RNAi | (iii) | Detection of HIV infection |
| d. | PCR | (iv) | Bacillus thuringiensis |
| a | b | c | d | |
| 1. | (iii) | (ii) | (i) | (iv) |
| 2. | (ii) | (iii) | (iv) | (i) |
| 3. | (i) | (ii) | (iii) | (iv) |
| 4. | (iv) | (i) | (ii) | (iii) |
Recombinant therapeutic [used for treatment] products are available for all the following disorders except:
1. Hemophilia A
2. Pituitary dwarfism
3. Diabetes insipidus
4. Anemia due to renal failure
Which of the following correctly describes ‘Golden Rice’?
1. A variety of rice grown along the yellow river in China
2. Long stored rice having yellow colour tint
3. A transgenic rice having gene for β - carotene
4. Wild variety of rice with yellow coloured grains
A single-stranded DNA or RNA fragment used in genetic engineering to search for a particular gene or other DNA sequence is called as a :
| 1. | probe | 2. | vector |
| 3. | restriction sequence | 4. | retrovirus |
Alpha-1-antitrypsin was produced in a transgenic sheep, Tracy. This enzyme is used in the treatment of:
| 1. | Emphysema | 2. | Rheumatoid arthritis |
| 3. | Ovarian cancer | 4. | Pancreatitis |
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