Participants
A total of 124 student teachers, who were studying to become secondary biology teachers at the Faculty of Education in Selcuk University in Turkey, participated in this study. The average age of students was 22.3 years (range 21 - 25). The majority of students were females (76 of 124). However, this study was not focused on gender differences. In the literature no high gender differences were found in this field (Kibbos et al., 2004). Thus, the gender difference was not examined in this study. Participants previously had studied cell division in cytology, genetics, and molecular biology, as a school subject during various semesters. Research was conducted in October, 2008.