Q. No.
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 |
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 |
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. |
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 |
The trigger for activation of toxin of Bacillus thuringiensis is:
| 1. | Acidic pH of stomach |
| 2. | High temperature |
| 3. | Alkaline pH of gut |
| 4. | Mechanical action in the insect gut |
A protoxin is:
| 1. | A primitive toxin | 2. | A denatured toxin |
| 3. | Toxin produced by protozoa | 4. | Inactive toxin |
A probe which is a molecule used to locate homologous sequences in a mixture of DNA or RNA molecules could be:
| 1. | A ssRNA | 2. | A ssDNA |
| 3. | Either RNA or DNA | 4. | Can be ssDNA but not ssRNA |
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