You have made a small mistake in your analysis here. Like parthenogenesis, animals produced from androgenesis are only females because in both scenarios you have a doubling of the sex chromosomes. In partho, since the females only have X chromosomes, the only possible outcome is XX or female. In andro, because males are XY, you have the possibility of generating either XX or YY combinations but the YY genotype is non-viable so, again, the only possible outcome is XX or female.
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