Q. No.Which statement is correct?
A. Somaclonal variations are the variations observed in plants generated from somatic cultures.
B. A transgenic crop is one that contains and expresses a transgene.
C. Chloromycetin is obtained from Penicillium.
D. Bioprospecting is the process of discovery and commercialization of new products based on biological resources
(1) A, B, D
(2) B, C
(3) C, D
(4) A, B, C, D
| Statement-I: | Non-homologous DNA will attach to a DNA probe. |
| Statement-II: | At high temperature, two complementary DNA strands will anneal. |
| 1. | Only statement - I is true |
| 2. | Only statement - II is true |
| 3. | Both statements - I and II are true |
| 4. | Both statements - I and II are false |
Match the following :-
| Column-I | Column-II | ||
| I. | Biopiracy | (A) | Gene therapy |
| II. | Retroviral vector materials | (B) | Illegal removal of biological |
| III. | Biopatent entities | (C) | Right granted for biological |
| IV. | Kohler and Milstein | (D) | Monoclonal antibody |
1. I - B, II - A, III - D, IV - C
2. I - B, II - A, III - C, IV - D
3. I - B, II - C, III - A, IV - D
4. I - D, II - A, III - B, IV - C
Match the following :-
|
Column-I |
Column-II |
|
I. Escherichia coli |
(A) Nif gene |
|
II. Bacillus thuringiensis |
(B) Interferon |
|
III. Rhizobium meliloti |
(C) Bt toxin |
|
IV. Pseudomonas putida |
(D) Bioremediation |
(1) I - B, II - A, III - D, IV - C
(2) I - B, II - A, III - C, IV - D
(3) I - B, II - C, III - A, IV - D
(4) I - D, II - A, III - B, IV - C
3. In a type of yeast fermentation , the entire medium with fermenting organism is removed from the bioreactor after reaching an alcohol level of 10-12%. This process is called
a. Continuous process
b. Batch process
c. Synchronous culture
d. Immobilized process
The immobilization of enzymes is achieved by
a. Killing the cells without affecting enzymes
b. Attaching the enzymes covalently to a solid support
c. Entrapping the living cells in gel
d. All of these
A genetically engineered micro-organism which has found extensive use in bioremediation oil spills is a species of
1. Trichoderma
2. Mucuna
3. Pseudomonas
4. Bacillus
Incorporation of the gene for phytoene synthase and carotene desaturase to make a particular variety of yellowish rice has proven useful in the treatment of-
| 1. | Congenital heart disease |
| 2. | Night blindness |
| 3. | Xeroderma |
| 4. | Phrenoderma |
Cry toxin acts by
| 1. | Lysis of intestinal cells |
| 2. | Binding to midgut epithelium |
| 3. | Cell swelling |
| 4. | More than one correct |
Humulin production through microbial factories does not include the incorporation of the gene for
| 1. | A peptide | 2. | B peptide |
| 3. | C peptide | 4. | Both (1) and (2) |
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