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Genetics, as part of the "Ecology" hierarchy within "Life Science" and ultimately under the umbrella of "Science", explores the intricate mechanisms governing the expression and transmission of genetic information in organisms. It delves into the structure of genes, their function, and how they interact with the environment to shape biological diversity and adaptation. Genetics encompasses various sub-disciplines such as population genetics, molecular genetics, and evolutionary genetics, offering insights into the complexity of genetic inheritance and variation in living systems. By elucidating these fundamental principles, genetics helps us understand the ecological roles and survival strategies of diverse organisms, ultimately contributing to our broader comprehension of life on Earth.