Arraxi O. Urrutia's research while affiliated with University of Bath and other places

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In birds, males are homogametic and carry two copies of the Z chromosome (‘ZZ’), while females are heterogametic and exhibit a ‘ZW’ genotype. The Z chromosome evolves at a faster rate than similarly sized autosomes, a phenomenon termed ‘fast-Z evolution’. This is thought to be caused by two independent processes—greater Z chromosome genetic drift o...