π’ Part 1: Human Health and Disease (Q1βQ25) Q1. The causative agent of malaria is a) Plasmodium b) Entamoeba histolytica c) Trypanosoma d) Leishmania Answer: a) Plasmodium Explanation: Malaria is caused by protozoan parasites of the genus Plasmodium (vivax, falciparum, …
π’ Part 1: Strategies for Enhancement in Food Production (Q1βQ25) Q1. The process of crossing two genetically different organisms to produce improved varieties is called a) Hybridization b) Mutation c) Polyploidy d) Tissue culture Answer: a) Hybridization Explanation: Hybridization combines …
π’ Part 1: Microbes in Human Welfare (Q1βQ25) Q1. Curd formation from milk is mainly carried out by a) Saccharomyces cerevisiae b) Lactobacillus c) Penicillium d) Rhizobium Answer: b) Lactobacillus Explanation: Lactic acid bacteria (LAB) ferment lactose to lactic acid, …
π’ Part 1: Biotechnology β Principles and Processes (Q1βQ25) Q1. The first step in recombinant DNA technology is usually a) Ligation b) Isolation of DNA c) Transformation d) Screening Answer: b) Isolation of DNA Explanation: Pure, intact DNA from source …
π’ Part 1: Biotechnology and Its Applications (Q1βQ25) Q1. The first FDA-approved recombinant human therapeutic was a) Human growth hormone b) Interferon-Ξ± c) Insulin (Humulin) d) Erythropoietin Answer: c) Insulin (Humulin) Explanation: rDNA insulin (1982) was the first widely approved …
π’ Organisms and Populations (Q1βQ25) Q1. Ecology is the study of a) Cells b) Tissues c) Organisms in relation to their environment d) Evolution Answer: c) Organisms in relation to their environment Explanation: Ecology deals with interactions between organisms and …
π± Ecosystem MCQs (Part 1: Q1βQ25) Q1. The functional unit of ecology is: a) Community b) Ecosystem β c) Population d) Species Explanation: An ecosystem includes both biotic and abiotic components and their interactions, making it the basic functional unit …
π± Biodiversity & Conservation Part 1: Q1βQ25 Q1. The term βbiodiversityβ refers to: a) Variety of ecosystems b) Variety of species c) Genetic variation within species d) All of the above β Explanation: Biodiversity includes diversity at genetic, species, and …
π Environmental Issues β MCQs Part 1: Q1βQ25 Q1. The major cause of ozone depletion is emission of: a) COβ b) CFCs (chlorofluorocarbons) β c) SOβ d) NOβ Explanation: CFCs release chlorine radicals in the stratosphere that catalyze the breakdown …
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Chapter 6 β Life Processes β MCQs (Part 1: Q1βQ25) Q1. The basic life processes are: a) Respiration, Excretion, Movement, Reproduction b) Nutrition, Respiration, Transportation, Excretion β c) Growth, Locomotion, Reproduction, Excretion d) Circulation, Excretion, Photosynthesis, Movement Answer: b) Nutrition, …
Chapter 7 β Control and Coordination β MCQs (Part 1: Q1βQ25) Q1. The structural and functional unit of the nervous system is: a) Brain b) Nephron c) Neuron β d) Axon Answer: c) Neuron Explanation: Neurons are specialized cells that …
Chapter 8 β How Do Organisms Reproduce? β MCQs (Part 1: Q1βQ25) Q1. The process by which new organisms are produced from existing ones is called: a) Respiration b) Photosynthesis c) Reproduction β d) Evolution Answer: c) Reproduction Explanation: Reproduction …
Chapter 9 β Heredity and Evolution β MCQs (Part 1: Q1βQ25) Q1. The unit of heredity is: a) Chromosome b) Gene β c) DNA d) Trait Answer: b) Gene Explanation: Genes are segments of DNA that determine specific traits and …
Light reflection and refraction mcqs for class 10, cbse class 10 light reflection mcqs with answers, important physics mcqs on reflection and refraction, class 10 science board exam practice questions, solved multiple choice questions on light class 10, objective …
Chapter 11 β Human Eye and Colourful World β MCQs (Part 1: Q1βQ25) Q1. The human eye forms the image of an object at: a) Cornea b) Retina c) Lens d) Iris β Answer: b) Retina Explanation: Retina acts as …
Chapter 12 β Electricity β MCQs (Part 1: Q1βQ25) Q1. The SI unit of electric current is: a) Volt b) Ampere c) Ohm d) Coulomb β Answer: b) Ampere Explanation: Current is measured in amperes (A), which represents 1 coulomb …