1. Which of the following breeding methods is most effective for improving self-pollinated crops like wheat? a) Pedigree method b) Mass selection c) Hybridization d) Heterosis breeding Answer: a) Pedigree method Explanation: The pedigree method is most effective for self-pollinated crops like wheat, where inbreeding depression is minimized, and genetic improvement is achieved through successive … Read more
1. Which of the following is a core concept of rural sociology? a) Urbanization b) Social change in rural settings c) Industrialization d) Globalization Answer: b) Social change in rural settings Explanation: Rural sociology primarily focuses on social changes and issues affecting rural societies, including agricultural practices, rural economy, and social structures in rural areas. … Read more
1. Which of the following methods is primarily used to separate DNA fragments based on their size? a) Southern blotting b) PCR (Polymerase Chain Reaction) c) Gel electrophoresis d) Northern blotting Answer: c) Gel electrophoresis Explanation: Gel electrophoresis separates DNA fragments based on their size by applying an electric field, where smaller fragments move faster … Read more
1. Which of the following is the most efficient method of irrigation in terms of water use efficiency? a) Surface irrigation b) Drip irrigation c) Sprinkler irrigation d) Furrow irrigation Answer: b) Drip irrigation Explanation: Drip irrigation delivers water directly to the root zone of plants, minimizing water loss due to evaporation and runoff, thus … Read more
1. Which of the following is a characteristic feature of insects in the order Coleoptera (beetles)? a) Two pairs of wings with membranous structure b) One pair of wings and one pair of halteres c) Elytra that cover the wings d) Chewing mouthparts with a soft exoskeleton Answer: c) Elytra that cover the wings Explanation: … Read more
1. Which of the following characteristics is shared by all insects? a) Two pairs of wings b) Three pairs of legs c) A soft, segmented body d) A simple eye structure Answer: b) Three pairs of legs Explanation: All insects belong to the class Insecta, and one of their defining characteristics is having three pairs … Read more
1. Which of the following is NOT typically considered a characteristic of an entrepreneur? a) Innovation and creativity b) Willingness to take risks c) Desire for job security d) Strong leadership skills Answer: c) Desire for job security Explanation: Entrepreneurs are typically risk-takers and are often motivated by innovation and the desire to create something … Read more
1. Which of the following is the primary purpose of agricultural extension services? a) To provide financial aid to farmers b) To promote government agricultural policies c) To disseminate knowledge and technology to improve agricultural practices d) To enforce agricultural laws and regulations Answer: c) To disseminate knowledge and technology to improve agricultural practices Explanation: … Read more
1. Which of the following is the most likely outcome of a cross between two heterozygous plants for a single gene (Aa × Aa)? a) 100% dominant phenotype b) 25% recessive phenotype, 75% dominant phenotype c) 50% dominant phenotype, 50% recessive phenotype d) 75% dominant phenotype, 25% recessive phenotype Answer: d) 75% dominant phenotype, 25% … Read more
1. Which of the following statements best defines “biotrophs” in plant pathology? a) Organisms that can only grow and reproduce in dead plant tissue. b) Organisms that require living host tissue for their nutrition. c) Organisms that can survive independently of plant hosts. d) Organisms that infect both plant and animal hosts. Answer: b) Organisms … Read more