Definition of Human gene map

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Human gene map: The locations of the human genes. The location of each gene is called a locus (plural: loci).

The total number of known gene loci on the human gene map as of June 24, 2000 was 6270. Chromosome 1 contained the most gene loci, namely 627, while the Y chromosome had the fewest, namely 24. The total distribution of the 6270 gene loci was as follows:

chromosome 1 : 627
chromosome 2 : 379
chromosome 3 : 323
chromosome 4 : 247
chromosome 5 : 266
chromosome 6 : 380
chromosome 7 : 293
chromosome 8 : 210
chromosome 9 : 244
chromosome 10 : 218
chromosome 11 : 401
chromosome 12 : 336
chromosome 13 : 101
chromosome 14 : 194
chromosome 15 : 163
chromosome 16 : 241
chromosome 17 : 384
chromosome 18 : 89
chromosome 19 : 404
chromosome 20 : 136
chromosome 21 : 91
chromosome 22 : 142
chromosome X : 377
chromosome Y : 24