This page includes answer key and explanation for the following page:
- MCQ on GM Crops
Answer key
| 1. | c | 6. | c |
| 2. | b | 7. | a |
| 3. | d | 8. | d |
| 4. | a | 9. | b |
| 5. | c | 10. | a |
| 11. | a | 16. | a |
| 12. | d | 17. | b |
| 13. | b | 18. | c |
| 14. | c | 19. | d |
| 15. | c | 20. | d |
21. B 22. C
Also read: GM Potato Varieties (Cultivars)
Explanation
Introduction
01: Tobacco (1987) is considered the first transgenic crop.
02: USA has the first position in transgenic crops
03: The rank of India transgenic plants is fourth
04: The position of transgenic plant in world is soyabean (60%) > Maize > Cotton > Canola
05: The Bt cotton variety Bollgourd II contains both genes of Cry I Ac and Cry 2 Ab gene.
06: The first commercial Bt cotton variety (bollgard) was released by Monsanto a company based in USA. It contained Cry 1Ac gene of B. thuringiensis.
Bt. cotton
08: Following countries have released Bt. cotton variety
- Mahyco
- Nath Seeds
- Rasi Seeds
- Nuziveedu
- Ankur Seeds
- Ganga Kaveri
- Emergent Genetics
- JK Seeds
- Ajeet Seeds
- Prabhat Seeds Ltd.
- Krishidhan Seeds
- Tulasi Seeds
- Vikram Seeds
- Pravardhan Seeds
09: Aphid is the most serious pest of Bt. cotton
10: B. thuringensis is a soil bacterium that produces proteins lethal to insect larvae affecting the digestive system of bollworms.
11: GM cotton was permitted by Genetic Engineering Approval Committee under Ministry of Environment and Forestry on March, 2002.
12: Bt. cotton varieties by Mahyco are as follows
- MECH-12
- MECH-162
- MECH-184
- RCH-134
- RCH-138
GM mustard and golden rice
13: GM mustard is a glyphosate resistance mustard.
14: The glyphosate resistance GM mustard was developed by Pro-Agro Seed Company.
15: Varieties developed of Brassica juncea at TERI are as follows
- TERI-unnat
- TERI-uttam
16: Vitamin A is the major component of golden rice.
17: Golden rice is rich in Beta carotene.
18: The consumption of golden rice has also increased the risk of diarrhea and mortality in children.
19: Flavr savr is a GM tomato by Calgene
20: Flavr savr is known for the following things
- Improved shelf-life
- Fungal resistance
- Viscosity
21: Flavr Savr is also known as CGN-89564-2.
22: Calgene scientists used Agrobacterium tumefaciens to transfer genetic material into Flavr Savr plant cells.