Biology is designed for multi-semester biology courses for science majors. It is grounded on an evolutionary basis and includes exciting features that highlight careers in the biological sciences and everyday applications of the concepts at hand. To meet the needs of today’s instructors and students, some content has been strategically condensed while maintaining the overall scope and coverage of traditional texts for this course. Instructors can customize the book, adapting it to the approach that works best in their classroom. Biology also includes an innovative art program that incorporates critical thinking and clicker questions to help students understand—and apply—key concepts.
By the end of this section, you will be able to:Describe gel electrophoresisExplain molecular and reproductive cloningDescribe uses of biotechnology in medicine and agriculture
Restriction endonucleases (REs), which recognize and specifically cleave DNA sequences, are part of bacterial defense systems. The exquisite specificities of REs have made them valuable tools in the molecular biology laboratory. In this module, students devise and conduct a strategy to distinguish plasmids by the patterns of fragments generated by RE digestion. Students use agarose gel electrophoresis to resolve DNA digestion products. This module is part of a semester-long introductory laboratory course, Investigations in Molecular Cell Biology, at Boston College.