Q1. Which method allows the identification of mutated genes using radioactive probes?A. ELISAB. Southern blottingC. PCRD. Autoradiography
Q2. What is the primary purpose of gene therapy?A. To enhance plant growthB. To correct genetic defectsC. To produce antibioticsD. To increase crop yield
Q3. Which of the following is incorrect about plasmids in genetic engineering?A. Plasmids are circular DNA molecules.B. Plasmids replicate independently in host cells.C. Plasmids are used as vectors to transfer genes.D. Plasmids encode ribosomal RNA in humans.
Q4. What is the primary aim of using RNA interference in genetically modified crops?A. Enhancing nutrient uptakeB. Silencing specific genes in pestsC. Increasing photosynthesisD. Promoting plant growth hormones
Q5. Which of the following is correct about somatic hybridization?A. Somatic hybridization involves the fusion of whole plant cells.B. Somatic hybridization fuses protoplasts from different species.C. Somatic hybridization is the same as sexual reproduction.D. Somatic hybridization is unrelated to plant biotechnology.
Q6. Which of the following statements about transgenic plants is correct?A. Transgenic plants are produced by crossing different species naturally.B. Transgenic plants contain genes from unrelated organisms introduced artificially.C. Transgenic plants are only used for ornamental purposes.D. Transgenic plants cannot be used for disease resistance.
Q7. Which molecule is produced during Bt toxin activation in the insect gut?A. Inactive protoxinB. Active toxinC. DNA polymeraseD. mRNA
Q8. What is the significance of auxins in plant tissue culture?A. Induces floweringB. Promotes root formationC. Enhances seed dormancyD. Inhibits cell division
Q9. Which of the following statements about the Genetic Engineering Approval Committee (GEAC) is correct?A. GEAC regulates traditional plant breeding methods.B. GEAC is responsible for approving and regulating genetically modified organisms in India.C. GEAC is an international organization for genetic research.D. GEAC only oversees the use of antibiotics in agriculture.
Q10. Which of the following is true about restriction enzymes?A. Restriction enzymes synthesize RNA from DNA.B. Restriction enzymes cut DNA at specific sites.C. Restriction enzymes are involved in protein synthesis.D. Restriction enzymes are only found in plants.