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
Probes are molecules of
| 1. | DNA | 2. | RNA | 
| 3. | Proteins | 4. | All of the above | 
New biotechnology utilizes new organisms developed from present organisms using
| 1. | Mutations | 
| 2. | Recombinant DNA Technology | 
| 3. | Recombinations | 
| 4. | All correct | 
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) | 
What is true for molecular diagnosis?
| 1. | It is inexpensive | 
| 2. | It involves drawing of serum for the test | 
| 3. | It can be used in the initial stages of the onset of the disease | 
| 4. | All of the above | 
The Cry toxin does not kill the bacterium in which it is produced because
| 1. | Bacterium is resistant to the toxin | 
| 2. | The bacterial cytoplasm is highly acidic | 
| 3. | The bacterial cytoplasm is highly alkaline | 
| 4. | The toxin is activated in alkaline medium |