Strategies for enhancement in food production Test-10 March 18, 2018admin0 Comments CategoriesNEET-Botany-Strategies for enhancement in food production Strategies for enhancement in food production Test-10 1. Cellular totipotency was demonstrated by Theodore Schwann A.V. Leeuwenhoek F.C Steward Robert Hooke 2. In tissue culture medium, the embryoids formed from pollen grains is due to cellular totipotency organogenesis double fertilization test tube culture 3. Which of the following crops have been brought of India from new world? cashewnut, potato, rubber mango, tea tea, rubber, mango coffee 4. The new varieties of plants are produced by introduction and mutation selection and introduction selection and hybridization mutation and selection 5. Haploid plants can be obtained by culturing pollen grains root tipes young leaves endosperm 6. Haploid plants are preferred over diploids for mutation study because in haploids recessive mutation express immediately induction of mutations is easier culturing is easier dominant mutation express immediately 7. Pure line breed refers to heterozygosity only 3) homozygosity only heterozygosity and linkage homozygosity and self assortment 8. In which one of the following combinations (a-d) of the number of chromosomes is the present day hexaploid wheat correctly represented ? Combination —-Monosomic—- Haploidsomic—Nulli-Triomic 21— 28—42—-43 7— 28—40—-42 21— 7—-42—-43 41 —21—40—43 9. Which is Indian dwarf wheat? T.dicoccum T.sphaerococcum T.tungidum T.aestivum 10. A scientist wants to study the viral effects on plants. Which of the following part of the plant should be excluded ? phloem pith cortex shoot apex 11. The plant material, which is widely used in the preparation of culture medium, is Cycasrevoluta Cocos mucifera Cocos mucifera Borassus flabelifer 12. Polyploidy leads to rapid formation of new species, because of isolation behaviour genetic recombination development of multiple sets of chromosomes mutation therapy 13. Axenic culture is culture of tissue culture of genes pure culture without any contamination pure culture of a microbe without any nutrient Loading … Related posts: Strategies for enhancement in food production Test-4 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 Powered by YARPP.