MCQs-Biology-Basics in agricultural biology Welcome to your Basics in agricultural biology 1. 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 2. Non-sense mutation Premature termination of translation Premature termination transcription Incorporation of chemically different amino acid in a protein None of the above None 3. Which of the following may not be considered as phenotypic marker? Dwarfness Silent mutation in DNA polymerase Yellow green leaf color Curly leaves None 4. What is the unit of yield? Kg Kg/ha Kgha Kg/annum None 5. Which of the following best describes the reason behind little genetic studies on roots? Roots does not perform essential role in the crop yield Root traits are difficult to breed Roots are located underground limiting its accessibility in order to study the genetic behaviour Roots are genetically not diverse None 6. 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 7. In which crop higher amylose and amylopectin is desirable trait? Pulses Oilseeds Cereals Cotton None 8. Silent mutation is Incorporation of chemically different amino acid in a protein Incorporation of chemically same amino acid in a protein Premature protein Structurally different protein None 9. 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 10. Which of the following is not the essential trait in oil crop improvement? Seed yield Total oil content Early maturity None of the above None 11. Which of the following is true about fatty acids? Fatty acids are present in the cell wall Fatty acid generally contain more than one carboxylic groups Long carbon chain containing acids These are the highly polar acids None 12. Which of the following proteins are involved in the degradation of the other proteins? Ubiquitins Receptor kinases Ion transporters Histone proteins None 13. What is IPC International pulse corporation Inter parental crosses Integrated pest control None of the above None 14. Which of the following is not the essential trait oil crop improvement? Seed yield Total oil content Early maturity Amino acid content None 15. Missense mutation Leads to formation of different protein Leads to addition of chemically different amino acid in a protein Leads to Change in non coding part of the gene Is because of the misfolding of the protein None Please fill in the comment box below. Time's up
