2D:4D finger ratio in Slovak autism spectrum population

P Krajmer1, M Spajdel, A Kubranska

  • 1Institute of Physiology, Faculty of Medicine, Comenius University, Bratislava, Slovakia. krajmerpeter@gmail.com

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The Ratio of X Chromosome to Autosomes02:45

The Ratio of X Chromosome to Autosomes

In most organisms, sex is determined by the ratio of X and Y chromosomes. However, in some organisms, such as Drosophila and C.elegans, sex is determined by the ratio of the number of X chromosomes to the number of sets of autosomes. The Y chromosome in Drosophila is active but does not determine sex. It contains genes responsible for the production of sperms in adult flies.  
Normal male Drosophila has a ratio of one X chromosome to two sets of autosomes. In contrast, normal female Drosophila...