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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 chromosome because the presence of the Y chromosome causes offspring produced in sexual reproduction to be of male sex.
Date: 2002: Source: Human Chromosomes from "Human Genome Landmarks: Selected Genes, Traits, and Disorders" Poster, 2002. (Gene Gateway) from Human Genome Project (1990-2003) Image Gallery Archive
The Y-chromosomal most recent common ancestor is the most recent common ancestor of the Y-chromosomes found in currently living human males.. Due to the definition via the "currently living" population, the identity of a MRCA, and by extension of the human Y-MRCA, is time-dependent (it depends on the moment in time intended by the term "currently").
While all human chromosomes contain repeats, more than 30 million letters of the Y chromosome — out of 62.5 million — are repetitive sequences, sometimes called satellite DNA or junk DNA.
Among the six species, the Y chromosome exhibited much more variability than the X chromosome. For example, the X chromosomes of humans and chimpanzees are about 98 percent identical in makeup.
Scientists fully sequence the Y chromosome for the first time, uncovering information that could have implications for the study of male infertility and other issues. Scientists have finally ...
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Numerical raw data of human chromosome Y (Assembly GRCh38.p3) #Chromosome Arm Band ISCN start ISCN stop Basepair_start Basepair_stop stain density Y: p: 11.32: 0: 149 ...