What does GFF mean in HUMAN GENOME

GFF stands for Genetic Feature Format. It is a standard file format used in bioinformatics for the exchange of genetic and genomic information.

A GFF file contains information about gene and other feature annotations, such as cDNA sequences, chromosomal locations, gene-protein relationships, and conserved regions of DNA across species.

cDNA stands for complementary DNA. It is a double-stranded molecule derived from mRNA that serves as template to generate protein molecules in the cell.

GFF files are often used by bioinformaticians to store data on genes or other features found in genome sequencing projects or to create databases of genes or other features that can be used by scientists to study evolutionary biology or identify potential drug targets.

Yes there is. Typically a GFF file consists of nine tab-separated columns containing the following fields - 1) data source name; 2) sequence name; 3) feature type; 4) start position; 5) end position; 6) score - optional field which indicates its importance; 7) strand - "+" or "-"; 8) frame - which indicates which base CDS starts from; 9) attributes - additional descriptive fields separated by ";" characters.