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:Explain how the structure of DNA reveals the replication processDescribe the Meselson and Stahl experiments

By the end of this section, you will be able to:Discuss the different types of mutations in DNAExplain DNA repair mechanisms

By the end of this section, you will be able to:Discuss the similarities and differences between DNA replication in eukaryotes and prokaryotesState the role of telomerase in DNA replication

By the end of this section, you will be able to:Explain the process of DNA replication in prokaryotesDiscuss the role of different enzymes and proteins in supporting this process

By the end of this section, you will be able to:Describe the structure of DNAExplain the Sanger method of DNA sequencingDiscuss the similarities and differences between eukaryotic and prokaryotic DNA

By the end of this section, you will be able to:Explain transformation of DNADescribe the key experiments that helped identify that DNA is the genetic materialState and explain Chargaff’s rules

Students conduct their own research to discover and understand the methods designed by engineers and used by scientists to analyze or validate the molecular structure of DNA, proteins and enzymes, as well as basic information about gel electrophoresis and DNA identification. In this computer-based activity, students investigate particular molecular imaging technologies, such as x-ray, atomic force microscopy, transmission electron microscopy, and create short PowerPoint presentations that address key points. The presentations include their own explanations of the difference between molecular imaging and gel electrophoresis.