It was observed that the participants of Group G2CA had assumen themselves of a scientific writing not cited by group G1CA. The results also demonstrate that it had a change of conceptions of the participants with regard to the localization of the molecule of the DNA where the participants of Group G2CA cite the cells with 58% and in group G1CA she was cited the personal characteristics with 66%. The activities on DNA of the banana as well as the construction of models that demonstrate the structure of the molecule of the DNA had contributed for the change of these conceptions. The participants had also assumen themselves of concepts as blood and wires of hair that had been very probably influenced by the media on the current tests of paternity and based criminalsticos examinations in the analysis of extracted DNA of the blood, involved wires of hair and other fabrics (Pedrancini, 2007). The participants of two groups G1CA and G2CA had cited the paternity identification as important tool of the DNA in the current days what she validates the idea of that the conceptions of the participants had been influenced by the notice propagated for the media. Related questions the importance gnica mutation disclose that participants of Group G1CA were unaware of this subject where the majority of the participants did not know to answer this question.

The developed theoretician-practical activities in the research had promoted the change of conception of the participants of Group G2CA with regard to the agreement on gnica mutation where if they had appropriated of concepts as ' ' Improvement of the Alimentos' ' cited with 44% of frequency and ' ' Transformation in the Gene' ' with 28% of frequency. These activities had changed the conception of the participants with regard to questions related to the Gnica Mutation. In its positionings on what they understood for transgnicos it was cited by the participants of two groups, G1CA with the 100% of frequency and G2CA with 50% of frequency concept ' ' alterations plants and alimentos' '.