Q. No.Transgenic animals used to test the safety of polio vaccine are:
1.
Mice
2.
Monkeys
3.
Rabbits
4.
Pigs
1. Improved shelf life
2. Disease resistance
3. Herbicide resistance
4. Improved nutritional value
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. |
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 |
The transgenic cow, Rosie, produced milk that:
| 1. | contained human beta-lactalbumin |
| 2. | contained interferons to treat viral infections |
| 3. | contained Alpha-1 – 1 antitrypsin |
| 4. | is protein enriched |
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 |
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 |
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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