MCQs-Biology-Basics in agricultural biology Welcome to your Basics in agricultural biology 1. The full form of the TILLING is Transcriptional initiation lipid layering and integration Topology illustrating infographics Targeting induced local lesion in genome None of the above. None 2. Which of the following may not be considered as phenotypic marker? Dwarfness Silent mutation in DNA polymerase Yellow green leaf color Curly leaves None 3. What is the unit of yield? Kg Kg/ha Kgha Kg/annum None 4. Which of the following category of plants have more evolutionary advantage? Cross pollinating plants, because it helps in creating newer genetic variability Self pollinating plants, because the genome stays uncontaminated with the foreign DNA Vegetatively propagating plants Plants with longer lifespan None 5. What is the harvest index? It is the ratio of the grain yield per unit above ground biomass It is the ratio of grain yield and total plant biomass The ratio of plant biomass to the total grain yield It is the maximum yield produced by a cultivar per unit area None 6. Why linolenic acid can not be stored for longer time? Because of the inefficient storage methods Residual impurities affect the quality of the linolenic acid It oxidises rapidly It is highly flammable None 7. Which of the following is not the essential trait oil crop improvement? Seed yield Total oil content Early maturity Amino acid content None 8. What is the difference between two way cross and three way cross? Two way cross is performed between two pure lines and three way cross is performed between F1 plants and a pure line Two way cross is made between two F1 plants, three way cross is performed between F1 plants and a pure line Three way cross offers more genetic variability as compared to two way cross Both are same I and III None 9. In which crop higher amylose and amylopectin is desirable trait? Pulses Oilseeds Cereals Cotton None 10. Which of the following is true about the male sterility Male sterile plants never produce any gamete Plant produce infertile male gametes Plants lack female gametes Male and female gametes are infertile None 11. Backcrossing is used… To introduce a one or few characters in otherwise a elite cultivar Only to test the gene dominance Only to develop NILs None of the above None 12. What is IPC International pulse corporation Inter parental crosses Integrated pest control None of the above None 13. Different colours of flower are because of… Anthocyanins Carotenoids Chlorophylls Proteins None of the above I and II None 14. Which of the following proteins are involved in the degradation of the other proteins? Ubiquitins Receptor kinases Ion transporters Histone proteins None 15. Objective of mutation breeding is To change the genomic DNA Increase the ROS levels in the cells To induce point mutation without affecting any other characters To accelerate the process of genomic rearrangements None Please fill in the comment box below. Time's up
