Biology 2e is designed to cover the scope and sequence requirements of a typical two-semester biology course for science majors. The text provides comprehensive coverage of foundational research and core biology concepts through an evolutionary lens. Biology includes rich features that engage students in scientific inquiry, highlight careers in the biological sciences, and offer everyday applications. The book also includes various types of practice and homework questions that help students understand—and apply—key concepts. The 2nd edition has been revised to incorporate clearer, more current, and more dynamic explanations, while maintaining the same organization as the first edition. Art and illustrations have been substantially improved, and the textbook features additional assessments and related resources.

By the end of this section, you will be able to do the following:

Identify major viral illnesses that affect humans
Compare vaccinations and anti-viral drugs as medical approaches to viruses

By the end of this section, you will be able to do the following:

Define population genetics and describe how scientists use population genetics in studying population evolution
Define the Hardy-Weinberg principle and discuss its importance

In this course we will explore the new emerging field of pathogen-induced chronic diseases. Work in this field has redefined the causes of some major disorders, such as ulcers. By reading the primary research literature we will learn about the molecular mechanisms through which pathogens cause disease. The diseases that we cover will be introduced with a short patient case study. We will discuss the bacterium Helicobacter pylori and gastric disease, HPV and cervical cancer, hepatitis C virus and liver disease, Epstein-Barr virus and lymphoma, Cytomegalovirus and atherosclerosis, as well as diabetes and multiple sclerosis. We will study technical advances in the fight against microbes and explore future directions for new treatment strategies of chronic infections and inflammation. This course is one of many Advanced Undergraduate Seminars offered by the Biology Department at MIT. These seminars are tailored for students with an interest in using primary research literature to discuss and learn about current biological research in a highly interactive setting. Many instructors of the Advanced Undergraduate Seminars are postdoctoral scientists with a strong interest in teaching.