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With rapid advances in biotechnology and molecular biology, instructors are challenged to not only provide undergraduate students with hands-on experiences in these disciplines but also to engage them in the "real-world" scientific process. Two common topics covered in biotechnology or molecular biology courses are gene-cloning and bioinformatics, but to provide students with a continuous laboratory-based research experience in these techniques is difficult. To meet these challenges, we have partnered with Bio-Rad Laboratories in the development of the "Cloning and Sequencing Explorer Series," which combines wet-lab experiences (e.g., DNA extraction, polymerase chain reaction, ligation, transformation, and restriction digestion) with bioinformatics analysis (e.g., evaluation of DNA sequence quality, sequence editing, Basic Local Alignment Search Tool searches, contig construction, intron identification, and six-frame translation) to produce a sequence publishable in the National Center for Biotechnology Information GenBank. This 6- to 8-wk project-based exercise focuses on a pivotal gene of glycolysis (glyceraldehyde-3-phosphate dehydrogenase), in which students isolate, sequence, and characterize the gene from a plant species or cultivar not yet published in GenBank. Student achievement was evaluated using pre-, mid-, and final-test assessments, as well as with a survey to assess student perceptions. Student confidence with basic laboratory techniques and knowledge of bioinformatics tools were significantly increased upon completion of this hands-on exercise.

cbe life sciences education

Effectiveness of a Cloning and Sequencing Exercise on Student Learning with Subsequent Publication in the National Center for Biotechnology Information GenBank