Gene families are groups of related genes that share a common evolutionary origin. Learn how gene duplication, gene loss, orthology, paralogy, and functional diversification shape gene families and genome evolution.
Synteny analysis compares the organization of genes across genomes. Learn how conserved gene order, genomic neighborhoods, and syntenic blocks help study orthologs, gene duplication, gene loss, and genome evolution.
Orthology inference identifies evolutionary relationships between genes using sequence similarity, gene families, phylogenetics, synteny, and computational methods. Learn the major approaches and their limitations.
Reciprocal Best BLAST Hits (RBH) provide a simple approach for identifying candidate orthologs between organisms. Learn how reciprocal BLAST works, how to interpret results, and why RBH does not always prove orthology.
Learn the GenBank submission process, including sequence preparation, metadata, annotation, validation, accession numbers, data release, and common submission mistakes.
GenBank is a continuously updated nucleotide sequence database. Learn how GenBank data quality, record updates, validation, database releases, and release statistics affect sequence analysis and reproducible research.
GenBank provides nucleotide sequence data that researchers use in comparative genomics to compare genes and genomes, identify conserved sequences, investigate genome evolution, study gene gain and loss, and analyze relationships among organisms.
GenBank supports research across genomics, evolutionary biology, microbiology, and biodiversity by providing publicly available nucleotide sequences for genome comparison, phylogenetics, microbial identification, DNA barcoding, taxonomy, and genetic diversity studies.
GenBank is widely used in bioinformatics and molecular biology for DNA sequence retrieval, sequence identification, gene annotation, comparative genomics, phylogenetic analysis, DNA barcoding, microbiology, and many other biological applications.
BLAST is a widely used bioinformatics tool for finding similarities between DNA, RNA, and protein sequences. Learn how BLAST works, its major programs, applications, and role in sequence analysis.
Understand the GenBank flat file format with practical examples of LOCUS, ACCESSION, VERSION, FEATURES, qualifiers, ORIGIN, and nucleotide sequence data.
Learn how to retrieve and download GenBank sequences using accession numbers, NCBI searches, GenBank and FASTA formats, and practical sequence selection and data-management strategies.
Learn how NCBI Entrez Nucleotide is used to search and retrieve GenBank sequence records, including searches by accession number, organism, gene, and sequence type.
GenBank is a major public nucleotide sequence database maintained by NCBI. Learn about its history, structure, sequence records, accession numbers, annotations, uses, and importance in modern bioinformatics and molecular biology.
Gene families are groups of related genes that share a common evolutionary origin. Learn how gene duplication, gene loss, orthology, paralogy, and functional diversification shape gene families and genome evolution.
Synteny analysis compares the organization of genes across genomes. Learn how conserved gene order, genomic neighborhoods, and syntenic blocks help study orthologs, gene duplication, gene loss, and genome evolution.
Orthology inference identifies evolutionary relationships between genes using sequence similarity, gene families, phylogenetics, synteny, and computational methods. Learn the major approaches and their limitations.
Reciprocal Best BLAST Hits (RBH) provide a simple approach for identifying candidate orthologs between organisms. Learn how reciprocal BLAST works, how to interpret results, and why RBH does not always prove orthology.
Learn the GenBank submission process, including sequence preparation, metadata, annotation, validation, accession numbers, data release, and common submission mistakes.
GenBank is a continuously updated nucleotide sequence database. Learn how GenBank data quality, record updates, validation, database releases, and release statistics affect sequence analysis and reproducible research.
GenBank provides nucleotide sequence data that researchers use in comparative genomics to compare genes and genomes, identify conserved sequences, investigate genome evolution, study gene gain and loss, and analyze relationships among organisms.
GenBank supports research across genomics, evolutionary biology, microbiology, and biodiversity by providing publicly available nucleotide sequences for genome comparison, phylogenetics, microbial identification, DNA barcoding, taxonomy, and genetic diversity studies.
GenBank is widely used in bioinformatics and molecular biology for DNA sequence retrieval, sequence identification, gene annotation, comparative genomics, phylogenetic analysis, DNA barcoding, microbiology, and many other biological applications.
BLAST is a widely used bioinformatics tool for finding similarities between DNA, RNA, and protein sequences. Learn how BLAST works, its major programs, applications, and role in sequence analysis.
Understand the GenBank flat file format with practical examples of LOCUS, ACCESSION, VERSION, FEATURES, qualifiers, ORIGIN, and nucleotide sequence data.
Learn how to retrieve and download GenBank sequences using accession numbers, NCBI searches, GenBank and FASTA formats, and practical sequence selection and data-management strategies.
Learn how NCBI Entrez Nucleotide is used to search and retrieve GenBank sequence records, including searches by accession number, organism, gene, and sequence type.
GenBank is a major public nucleotide sequence database maintained by NCBI. Learn about its history, structure, sequence records, accession numbers, annotations, uses, and importance in modern bioinformatics and molecular biology.
