People interested in their genetic composition can learn about their DNA structure. The DNA molecule is a fundamental ...

Yemen's paternal Y-chromosome haplogroups were dominated by J1, a marker associated with Southwest Asia, indicating ancient ties to the Levant and Arabia along male decent lines. Mitochondrial DNA ...

However, there is some evidence that the Y chromosome is being phased out of the evolutionary pipeline, and could one day disappear altogether — potentially giving rise to a new sex gene in the ...

When Nettie Steven discovered the Y chromosome in 1905 while studying the mealworm Tenebrio molitor, she identified it as a sex-determining chromosome. As it turns out, the chromosome also has ...