Question
What do you understand by database? Explain primary, secondary and composite databases.
Answer :
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A database in the context of biostatistics and bioinformatics is an organized collection of structured information or data that can be easily accessed, managed, and updated. In bioinformatics, databases store biological data such as DNA sequences, protein structures, gene expression profiles, and clinical trial results. They serve as essential tools for analyzing, retrieving, and integrating large-scale biological data, supporting research, diagnostics, and decision-making in biomedical sciences. Databases are designed to minimize redundancy, ensure data integrity, and allow complex queries to extract meaningful information efficiently. Primary databases are those that store raw and
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