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X chromosome |
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X chromosome [′eks ′krō·mə‚sōm] (genetics) The sex chromosome occurring in double dose in the homogametic female sex and in single dose in the heterogametic male sex in mammals,Diosophila, and many other organisms. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Because they would have produced fertile sons only when the mothers passed on X chromosomes mostly from one of the original species, this process eventually would have led to a final split. Tadpoles produced from the crossings of females with two X chromosomes and males with two Z chromosomes were all genetically male. The X chromosome may to many people connote femaleness, since women have a pair of X chromosomes and men have an X and a Y. |
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