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प्रश्न
Explain "Biological control".
उत्तर
Certain microorganisms control or prevent spread of other organisms. They are utilized as bio-control agents. Example - Certain fungi which kill agricultural weeds are utilized as bio-weedicides.
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संबंधित प्रश्न
Give the importance/significance of transgenic animals.
The modification of original genetic make-up is focussed by _____________.
Match and write the pairs.
| Recombinant protein | It’s used in or for |
| i. platelet-derived growth factor | a. Anemia |
| ii. α-antitrypsin | b. cystic fibrosis |
| iii. Relaxin | c. Haemophilia A |
| iv. Erythropoietin | d. Diabetes |
| v. Factor VIII | e. Emphysema |
| vi. DNase | f. Parturition |
| g. Atherosclerosis |
In Bt cotton a transgenic plant, Bt refers to ______.
Find an odd one out.
Vaccines produced with the help of biotechnology do not remain active for a longer duration.
Give scientific reason.
Herbicide tolerant crop plants are beneficial for agriculture.
What is the safest method of vaccination?
Study the following statements and select the correct option.
i. Factor VIII is used in the treatment of haemophilia A.
ii. Macrophage activating factor and tumor necrosis factor are used in cancer treatment.
iii. Hepatitis B can be prevented using relaxin.
Classify the following to form Column B as per the category given m Column A.
- Provide tissues for human transplants
- Cancer research
- E. coli hygromycin-resistant gene
- Supply of factor IX.
| Column A: (Transgenic animal) |
Column B: (Application) |
|
| (a) | Transgenic mice | |
| (b) | Transgenic cattle | |
| (c) | Pig clones | |
| (d) | Transgenic fish |
