An animator for a high-profile ad agency, Coles now lives with Claire, his girlfriend of five years. Social Research. Human fetus genitals can sometimes develop abnormalities during maternal pregnancies due to mutations in the fetuses sex-determinism system, resulting in the fetus becoming intersex.
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Plot Keywords. Sex determination was discovered in the mealworm by the American geneticist Nettie Stevens in Many other sex-determination systems exist. Sexy Beast 2.
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PLOS Genetics. Sam has returned to Manhattan from London after breaking off her engagement. Add the first question. Transcaucasian mole voles Ellobius lutescens also have a form of XO determination, in which both sexes lack a second sex chromosome. Petra Wright Claire. Journal of Systematics and Evolution. Main article: Temperature-dependent sex determination.
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A small number of mammals also lack a Y chromosome. Stunt Cop 2 Evan Neumann Help Learn to edit Community portal Recent changes Upload file.
Main article: ZW sex-determination system. Sexy Beast 2. The sexual differentiation is generally triggered by a main gene a "sex locus" , with a multitude of other genes following in a domino effect.