sex (页面存档备份,存于互联网档案馆). CollinsDictionary.com. Collins English Dictionary—Complete & Unabridged 11th Edition. Retrieved 3 December 2012.
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Hurst, Laurence D. Why are There Only Two Sexes?. Proceedings: Biological Sciences. 1996, 263 (1369): 415–422. JSTOR 50723. doi:10.1098/rspb.1996.0063.
Haag, E. S. Why two sexes? Sex determination in multicellular organisms and protistan mating types. Seminars in Cell and Developmental Biology. 2007, 18 (3): 348–9. PMID 17644371. doi:10.1016/j.semcdb.2007.05.009.
Guttman DS, Charlesworth D. An X-linked gene with a degenerate Y-linked homologue in a dioecious plant. Nature. 1998, 393 (6682): 263–6. PMID 9607762. doi:10.1038/30492.
Stiglec, R.; Ezaz, T; Graves, J. A. A new look at the evolution of avian sex chromosomes. Cytogenet. Genome Res. 2007, 117 (1–4): 103–109. PMID 17675850. doi:10.1159/000103170.
Grützner, F.; Rens, W.; Tsend-Ayush, E.; El-Mogharbel, N.; O'Brien, P. C. M.; Jones, R. C.; Ferguson-Smith, M. A.; Marshall, J. A. In the platypus a meiotic chain of ten sex chromosomes shares genes with the bird Z and mammal X chromosomes. Nature. 2004, 432 (7019): 913–917. PMID 15502814. doi:10.1038/nature03021.
Wilkinson, G. S.; Reillo, P. R. Female choice response to artificial selection on an exaggerated male trait in a stalk-eyed fly. Proceedings of the Royal Society B. 22 January 1994, 225 (1342): 1–6. doi:10.1098/rspb.1994.0001.
Stuart-Smith, J.; Swain, R.; Stuart-Smith, R.; Wapstra, E. Is fecundity the ultimate cause of female-biased size dimorphism in a dragon lizard?. Journal of Zoology. 2007, 273 (3): 266–272. doi:10.1111/j.1469-7998.2007.00324.x.
Briggs, D. A. Experimental taxonomy of some British species of genus Dicranum. New Phytologist. 1965, 64 (3): 366–386. doi:10.1111/j.1469-8137.1965.tb07546.x.
Hurst, Laurence D. Why are There Only Two Sexes?. Proceedings: Biological Sciences. 1996, 263 (1369): 415–422. JSTOR 50723. doi:10.1098/rspb.1996.0063.
Haag, E. S. Why two sexes? Sex determination in multicellular organisms and protistan mating types. Seminars in Cell and Developmental Biology. 2007, 18 (3): 348–9. PMID 17644371. doi:10.1016/j.semcdb.2007.05.009.
Guttman DS, Charlesworth D. An X-linked gene with a degenerate Y-linked homologue in a dioecious plant. Nature. 1998, 393 (6682): 263–6. PMID 9607762. doi:10.1038/30492.
Stiglec, R.; Ezaz, T; Graves, J. A. A new look at the evolution of avian sex chromosomes. Cytogenet. Genome Res. 2007, 117 (1–4): 103–109. PMID 17675850. doi:10.1159/000103170.
Grützner, F.; Rens, W.; Tsend-Ayush, E.; El-Mogharbel, N.; O'Brien, P. C. M.; Jones, R. C.; Ferguson-Smith, M. A.; Marshall, J. A. In the platypus a meiotic chain of ten sex chromosomes shares genes with the bird Z and mammal X chromosomes. Nature. 2004, 432 (7019): 913–917. PMID 15502814. doi:10.1038/nature03021.