Overview:Twin fetal development is chronicled, using advanced ultrasound technology. Also: a look the influence genes have on personalities, sexual preferences and other characteristics.
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First Air Date: Mar 06, 2005Last Air date: May 10, 2009Season: 1 SeasonEpisode: 7 EpisodeRuntime: 120:90 minutesQuality: HDIMDb: 10 / 10 by 0 usersPopularity: 0.4233Language: en
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