Biological-Classification-And-System-Of-Classification Question 900
Question: Match the following pairs correctly and choose the right combination [Kerala 2005]
| Column-I | Column-II |
|---|---|
| A Escherichia coli | 1. Nif gene |
| B Rhizobium melilotae | 2. Digestive hydrocarbon of crude oil |
| C Bacillus thurigiensis | 3. Production of human insulin |
| D Pseudomonas putida | 4. Biological control of fungal disease |
| 5. Bio-decomposed insectiside |
Options:
A) $ A=3,B=1,C=5,D=4 $
B) $ A=1,B=2,C=3,D=4 $
C) $ A=2,B=1,C=3,D=4 $
D) $ A=3,B=1,C=5,D=2 $
Show Answer
Answer:
Correct Answer: D
Solution:
Escherichia coli (A): This bacterium is widely used in biotechnology for the production of human insulin through recombinant DNA technology.
Rhizobium melilotae (B): This bacterium is involved in nitrogen fixation and contains the Nif gene, which is crucial for the nitrogen fixation process in legumes.
Bacillus thuringiensis (C): This bacterium produces a protein toxin that is used as a biological insecticide to control certain pests.
Pseudomonas putida (D): This bacterium is known for its ability to degrade hydrocarbons, making it useful in bioremediation of oil spills.
BETA
