𧬠Reproduction in Organisms β MCQs (Part 1: Q1βQ25) Q1. Which of the following is a defining feature of reproduction? a) Growth b) Replacement of old cells c) Formation of new individuals d) Movement Answer: c) Formation of new individuals …
π± Sexual Reproduction in Flowering Plants β MCQs Part 1: Questions 1β25 Q1. In angiosperms, the male gametophyte is represented by: a) Microspore mother cell b) Pollen grain c) Anther d) Stamen β Answer: b) Pollen grain Explanation: The pollen …
𧬠Human Reproduction β MCQs Part 1: Questions 1β25 Q1. The male reproductive system is called: a) Ovary b) Testis c) Testes + accessory ducts and glands d) Vas deferens β Answer: c) Testes + accessory ducts and glands Explanation: …
π’ Part 1: MCQs on Reproductive Health (Q1βQ25) Q1. Which of the following is the main objective of reproductive health? a) Increase population growth b) Prevent sexually transmitted diseases c) Ensure safe pregnancy and childbirth d) Both b and c …
π’ Part 1: Principles of Inheritance and Variation (Q1βQ25) Q1. Who is considered the father of genetics? a) Charles Darwin b) Gregor Mendel c) Hugo de Vries d) Alfred Wallace Answer: b) Gregor Mendel Explanation: Mendel is regarded as the …
π’ Part 1: Molecular Basis of Inheritance (Q1βQ25) Q1. DNA was identified as the transforming principle by a) Hershey and Chase b) Griffith c) Avery, MacLeod, McCarty d) Watson and Crick Answer: c) Avery, MacLeod, McCarty Explanation: They purified the …
π’ Part 1: Evolution (Q1βQ25) Q1. The theory of natural selection was proposed by a) Lamarck b) Darwin and Wallace c) Weismann d) De Vries Answer: b) Darwin and Wallace Explanation: Both independently conceived natural selection; Darwin detailed it in …
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 …