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Y chromosome
Sex chromosome in the XY sex-determination system / From Wikipedia, the free encyclopedia
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The Y chromosome is one of two sex chromosomes in therian mammals and other organisms. Along with the X chromosome, it is part of the XY sex-determination system, in which the Y is the sex-determining because it is the presence or absence of Y chromosome that determines the male or female sex of offspring produced in sexual reproduction. In mammals, the Y chromosome contains the SRY gene, which triggers development of male gonads. The Y chromosome is passed only from male parents to male offspring.
Quick Facts Human Y chromosome, Features ...
Human Y chromosome | |
---|---|
![]() Human Y chromosome (after G-banding) | |
![]() Y chromosome in human male karyogram | |
Features | |
Length (bp) | 62,460,029 bp (CHM13) |
No. of genes | 63 (CCDS)[1] |
Type | Allosome |
Centromere position | Acrocentric[2] (10.4 Mbp[3]) |
Complete gene lists | |
CCDS | Gene list |
HGNC | Gene list |
UniProt | Gene list |
NCBI | Gene list |
External map viewers | |
Ensembl | Chromosome Y |
Entrez | Chromosome Y |
NCBI | Chromosome Y |
UCSC | Chromosome Y |
Full DNA sequences | |
RefSeq | NC_000024 (FASTA) |
GenBank | CM000686 (FASTA) |
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