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
Over 95 % of all transgenic animals are:
1. Mice
2. Pigs
3. Sheep
4. Rabbits
The transgenic cow, Rosie, produced milk that:
1. Contained human beta lactalbumin
2. Interferons to treat viral infections
3. Alpha – 1 antirypsin
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:
A B C D
1. a b c d
2. a b d c
3. b a c d
4. b a d c
How were nematode-specific genes introduced in tobacco plants?
1. Using page DNA
2. Using a retrovirus
3. By gene gun
4. Using Agrobacterium tumefaciens
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
Cotton plants can be protected from corn borer by the proteins coded by:
1. cryIAc 2. cryIIAb
3. cryIAb 4. cryIAd
Why does Bt toxin not kill Bacillus thuringiensis?
1. The bacillus keeps proteins in inclusions
2. The toxin exists in the bacillus as a pro-toxin
3. The bacillus protects its genetic material by methylation
4. The bacillus has a tough cell wall of peptidoglycan
Which of the following genetically modified product is used to dissolve blood clots in patients with coronary artery disease?
1. | streptokinase | 2. | urokinase |
3. | tPA | 4. | heparin |
If one needs to derive a cDNA of human insulin, which cells should be taken up for extraction?
1. | Any cell of the human body as the DNA is the same in all cells |
2. | Any nucleated cell of the human body |
3. | Beta cells of islets of Langerhans of the human pancreas |
4. | WBCs |