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UP Board Class 12 Biology in Hindi Medium – Evolution

The chapter “Evolution” in UP Board Class 12 Biology helps Hindi medium students understand how life on Earth has changed and diversified over millions of years. It explains the scientific theories, processes, and evidence that describe the origin of life and the gradual development of different species.

Evolution
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The chapter begins with early ideas about the origin of life, followed by modern scientific concepts such as chemical evolution. Students learn about Darwin’s theory of natural selection, variations, adaptation, and the survival of the fittest. The chapter also explains Lamarck’s theory, evidences of evolution (fossils, anatomy, embryology), and mechanisms like genetic drift, mutation, gene flow, and speciation.

Important concepts such as Hardy–Weinberg equilibrium, types of selection, and evolutionary relationships among organisms are presented with simple explanations. This chapter builds a strong foundation for understanding biodiversity and the history of life on Earth.

"Evolution" is highly useful for UP Board exams and also strengthens concepts for competitive exams like NEET.v