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प्रश्न
Write the effect of biotechnology on agriculture and allied fields.
उत्तर
Effect of biotechnology on agriculture and allied fields are as follows:
- Genetically Modified crops (GM crops) are developed by altering the DNA of natural crops.
- These new varieties possess useful characters that can withstand adverse environmental stresses like frequently changing temperature, famines, changing climate, etc.
- GM crops with resistance to insect pests, pathogens and chemical weedicides can also be developed. This enables the farmers to reduce the use of harmful pesticides.
- There is an improvement in the nutritive value of crops and a decrease in crop losses due to the use of genetically modified or hybrid seeds.
- Biotechnology has helped enhance productivity and economic output from agriculture related fields like horticulture, floriculture, animal husbandry, apiculture, etc.
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संबंधित प्रश्न
Genetically engineered human insulin is obtained by inserting the gene in ______________.
What do you know about utilization of microbes in ancient times?
Mention some food items prepared with the help of microbes around the world.
| Column A | Column B | ||
| 1 | Koji | a | Yeast |
| 2 | Gari | b | Japan |
| 3 | Temph | c | Fermentation |
| 4 | Vinegar | d | Indonesia |
| 5 | Baking | e | Africa |
What is a vaccine?
Genetically modified crops have low resistance for disease.
Match the following.
| Living organism | Substance that absorbs |
| 1) Indian mustard | a) Radiations |
| 2) Deinococcus radiodurans | b) Selenium |
| c) Arsenic | |
| d) Uranium |
Write the things in day-to-day life made by biotechnology.
How can we solve many environmental problems using modern biotechnology?
Arrange the following steps which results in killing of insect which feed on transgenic plant.
- Mid gut becomes paralyzed and mid gut cells of insect are disrupted.
- Insect ingests transgenic plant containing cry gene.
- A combination of high pH and the enzyme proteinase of the insect's mid gut, processes crystalline inclusions hydrolyticall y to release the core toxic fragments.
In gene therapy, which of the following can be used to dissolve blood clots present in the body?
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.
Golden rice, a transgenic crop contains which of the following improved trait?
Complete the chart showing human proteins produced by rDNA technology to treat human diseases and re-write:
| Disorders/diseases | Recombinant Proteins |
| ? | Erythropoietin |
| Asthma | ? |
| ? | Tissue plasminogen activator |
| Emphysema | ? |
An example of gene therapy is ______.
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 |
Write a short note on golden rice.
Define the Transduction.
Identify and complete the following correlation.
______ : Dwarfness :: Factor VIII : Haemophilia
