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We present G-nome Surfer 2.0, a tabletop interface for fostering inquiry-based learning of genomics. We conducted an experimental study with 48 participants that compared students' learning of genomic concepts using existing bioinformatics tools and using two alternative implementations of G-nome Surfer: a collaborative multi-mouse GUI and a tabletop interface. Our findings indicate that G-nome Surfer improves students' performance, reduces workload, and increases enjoyment. The comparison of tabletop and multi-mouse implementations further shows that the tabletop condition results in four educational benefits: 1) increasing physical participation, 2) encouraging reflection, 3) fostering effective collaboration, and 4) facilitating more intuitive interaction.