By the end of this section, you will be able to:Understand how the cell cycle is controlled by mechanisms both internal and external to the cellExplain how the three internal control checkpoints occur at the end of G1, at the G2/M transition, and during metaphaseDescribe the molecules that control the cell cycle through positive and negative regulation

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.

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 how cancer is caused by uncontrolled cell growthUnderstand how proto-oncogenes are normal cell genes that, when mutated, become oncogenesDescribe how tumor suppressors functionExplain how mutant tumor suppressors cause cancer

By the end of this section, you will be able to:Describe how cancer is caused by uncontrolled cell growthUnderstand how proto-oncogenes are normal cell genes that, when mutated, become oncogenesDescribe how tumor suppressors functionExplain how mutant tumor suppressors cause cancer

By the end of this section, you will be able to:Describe the structure of prokaryotic and eukaryotic genomesDistinguish between chromosomes, genes, and traitsDescribe the mechanisms of chromosome compaction

By the end of this section, you will be able to:Understand how the cell cycle is controlled by mechanisms both internal and external to the cellExplain how the three internal control checkpoints occur at the end of G1, at the G2/M transition, and during metaphaseDescribe the molecules that control the cell cycle through positive and negative regulation

By the end of this section, you will be able to:Understand how the cell cycle is controlled by mechanisms both internal and external to the cellExplain how the three internal control checkpoints occur at the end of G1, at the G2/M transition, and during metaphaseDescribe the molecules that control the cell cycle through positive and negative regulation

By the end of this section, you will be able to:Describe the process of binary fission in prokaryotesExplain how FtsZ and tubulin proteins are examples of homology

By the end of this section, you will be able to:Describe the process of binary fission in prokaryotesExplain how FtsZ and tubulin proteins are examples of homology

By the end of this section, you will be able to:Describe the three stages of interphaseDiscuss the behavior of chromosomes during karyokinesisExplain how the cytoplasmic content is divided during cytokinesisDefine the quiescent G0 phase

By the end of this section, you will be able to:Describe the three stages of interphaseDiscuss the behavior of chromosomes during karyokinesisExplain how the cytoplasmic content is divided during cytokinesisDefine the quiescent G0 phase

Interphase of the cell cycle, including G₁, S, and G₂ phases. How the cell replicates its DNA before mitosis.

Mitosis is how cells divide! Learn what happens in all the phases of mitosis: prophase, metaphase, anaphase, and telophase.