Strategies for enhancement in food production Test-4 March 18, 2018admin0 Comments CategoriesNEET-Botany-Strategies for enhancement in food production Strategies for enhancement in food production Test-4 1. Number of chromosomes belong to the genus- Aegilops in fertile commercial bread wheat is 7 14 28 42 2. By colchicine treatment tetraploids can be converted into Pentaploids Hexaploids Heptaploids Octaploids 3. One of the following is not a parent of Triticum aestivum Triticum mononcoccum Aegilops speltoides Aegilops squarrosa Secale cereale 4. The number of genomes of Triticum monococcum in a hexaploid Triticum aestivum is 3 4 2 5 5. The product of second crossing during the formation of Triticum aestivum contains 14 chromosomes and 2 genomes 21 chromosomes and 3 genomes 36 chrosomes and 4 genomes 18 chromosomes and 2 genomes 6. Most common method of inducing polyploidy Cold treatment Using X – rays Colchicine treatment Acenaphthene treatment 7. An amphidiploid possess 2 diploid sets of one species 2 diploid sets of 2 different species 4diploid sets of 2 unusual species 2 haplois sets of 2 same species 8. Which of the following functions like mitotic poison Colchicine Monosodium Gultamate Formaldehyde 2, 4 – D 9. The ploidy of the aleurone cell when a ” 4n” female plants is crossed with “2n” male plant 5n 4n 3n 2n 10. Sonalika and Kalyan Sona are varieties of: wheat rice millet tobacco 11. Serveral South India states raise 2-3 crops of rice annually. The agronomic feature that makes this possible is because of shorter rice plant better irrigation facilities early yielding rice variety disease resistant rice variety 12. Which one of the following combination would a sugarcane farmer look for in the sugarcane crop? Thick stem, long internodes, high sugar content and disease resistant Thick stem, high sugar content and profuse flowering Thick stem, short internodes, high sugar content, disease resistant Thick stem, low sugar, conten, disease resistant 13. Use of certain chemicals and radiation to change the base sequences of genes of crop plants is termed: recombinant DNA technology transgenic mechanism mutation breeding gene therapy. 14. The scientific process by which crop plants are enriched with certain desirable nutrients is called: crop protection breeding bio-fortification bio-remediation 15. The biggest constraint of plant breeding is : availability of desirable gene in the crop and its wild relatives infrastructure trained manpower transfer of genes from unrelated sources. 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.