GM crops have been modified with various traits. Golden rice has been developed by the International Rice Research Institute for:
1. | Improved shelf life | 2. | Disease resistance |
3. | Herbicide resistance | 4. | Improved nutritional value |
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Transgenic animals used to test the safety of polio vaccine are:
1. | Mice | 2. | Monkeys |
3. | Rabbits | 4. | Pigs |
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A possible permanent cure for SCID can be:
1. | Enzyme replacement therapy, in which functional ADA is given to the patient by injections. |
2. | Bone marrow transplantation. |
3. | A functional ADA cDNA (using a retroviral vector) introduced into lymphocytes. |
4. | Gene isolated from marrow cells producing ADA is introduced into cells at early embryonic stages. |
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Antisense technology:
1. | selectively blocks the expression of a gene. |
2. | combines genetic material from different species. |
3. | combines organelles and cells. |
4. | alters or transfers cells. |
Match each item in Column I with one in Column II and select the answer from the codes given below:
Column I |
Column II |
||
A. |
Bioprospecting |
a. |
the process of discovery and commercialization of new products based on biological resources |
B. |
Biopiracy |
b. |
the exploitative patenting of already widely used natural resources, such as plant varieties, by commercial entities |
C. |
Bioremediation |
c. |
a process that uses microorganisms or their enzymes to treat polluted sites for regaining their original condition |
D. |
Biofortification |
d. |
the process by which the nutritional quality of food crops is improved through agronomic practices, conventional plant breeding, or modern biotechnology |
Codes
Options: | A | B | C | D |
1. | a | b | c | d |
2. | a | b | d | c |
3. | b | a | c | d |
4. | b | a | d | c |
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The transgenic cow, Rosie, produced milk that:
1. | Contained human beta lactalbumin |
2. | contained interferons to treat viral infections |
3. | contained Alpha – 1 antitrypsin |
4. | Is protein enriched |
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Over 95 % of all transgenic animals are:
1. | Mice | 2. | Pigs |
3. | Sheep | 4. | Rabbits |
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The first clinical gene therapy trial was given in 1990 to a 4 year girl with:
1. | Alpha – 1 antitrypsin deficiency |
2. | Cystic fibrosis |
3. | Adenosine deaminase deficiency |
4. | Chronic myeloid leukemia |
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RNAi, as a mechanism of cellular defense, takes place in:
1. | All bacteria | 2. | All unicellular organisms |
3. | All plants only | 4. | All eukaryotic organisms |
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Silencing of a gene could be achieved through the use of:
1. | RNAi only | 2. | antisense RNA only |
3. | both RNAi and antisense RNA | 4. | none of the above |
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