Strategies for enhancement in food production Test-3 March 18, 2018admin0 Comments CategoriesNEET-Botany-Strategies for enhancement in food production Strategies for enhancement in food production Test-3 1. Lables carrying the details of the parent of crossing etc., are tagged the Male flowers of male parent Female flowers of male parents Emasculated flowers after crossing Plants of pure line 2. During hybridization bagging is done Before emasculation and after emasculation Before emasculation and after artificial cross pollination After emasculation and before artificial cross pollination After emasculation, until and after artificial cross pollination 3. Emasculation cannot be carried out by ‘forceps’ method in Cotton Tomato Brinjal Bajra 4. Inbreeding depression is due to Mulation Vegetative propagation Cross pollination Self pollination 5. The spontaneous mutations were first observed in the plant, commonly known as Prime rose Evening prime rose Table rose China rose 6. Who amomg the following laid foundation for the first time in plants Hugo de Vries Karpenchenko Muller & Stadler M.S. Swaminathan 7. Who of the following induced mutations for the first time in plants HJ. Muller Hugo de Vries Swaminathan L.J. Stadler 8. Spontaneous mutations were first recorded in Ipomoea Oenothera Barley Drosophila 9. Most efficient and ultimate method of crop improvement that creates greatest genetic variability Mass selection Intergeneric hybridization Mutation breeding Polyploidy breeding 10. Mutagenic effect of X – rays was discovered by Hugo de Vries M.S.Swaminathan HJ. Muller T.H. Morgan 11. Identify the non – ionizing mutagenic radiation Gamma rays UV – rays X – rays Far – red light 12. Colchicine, a mutagen obtained from Colchicum is An alcohol An alkaloid A glucoside An essential oil 13. The character incorporated into IR – 8 through induced mutattion is Hardiness Pest resistance Disease resistance Parthenocarpy 14. Chemical mutagens mostly induce Chromosomal mutations Change in the number of chromosomes Gene mutations Formation of polyploids 15. Greater genetic variability can be created in the plants through. Mass selection and Clonal selection Pure line selection and Clonal selection Pure line selection and Mass selection Hybridization and Mutation breeding Loading … Related posts: Strategies for enhancement in food production Test-5 Strategies for enhancement in food production Test-6 Strategies for enhancement in food production Test-7 Strategies for enhancement in food production Test-8 Strategies for enhancement in food production Test-9 Powered by YARPP.