doi: 10.1126/science.3738510.
Chromosome Y-specific DNA is transferred to the short arm of X chromosome in human XX males
- PMID: 3738510
- DOI: 10.1126/science.3738510
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Chromosome Y-specific DNA is transferred to the short arm of X chromosome in human XX males
Science.
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Abstract
Y-chromosomal DNA is present in the genomes of most human XX males. In these cases, maleness is probably due to the presence of the Y-encoded testis-determining factor (TDF). By means of in situ hybridization of a probe (pDP105) detecting Y-specific DNA to metaphases from three XX males, it was demonstrated that the Y DNA is located on the tip of the short arm of an X chromosome. This finding supports the hypothesis that XX maleness is frequently the result of transfer of Y DNA, including TDF, to a paternally derived X chromosome.
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