See this close-up animation showing how ribosomes carry out translation to make a particular proteins. [3:04]
Watch this microscopic animation of genetic translation in action. [2:06]
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:
Describe nucleic acids' structure and define the two types of nucleic acids
Explain DNA's structure and role
Explain RNA's structure and roles
As a class, students work through an example showing how DNA provides the "recipe" for making our body proteins. They see how the pattern of nucleotide bases (adenine, thymine, guanine, cytosine) forms the double helix ladder shape of DNA, and serves as the code for the steps required to make genes. They also learn some ways that engineers and scientists are applying their understanding of DNA in our world.
This article explains how and why mutations are so important to genetics.
This article contains information on how DNA is repaired to prevent mutated damage from interrupting DNA processes.
This video introduces how HIV enters the host cell, how it co-opts the cellular machinery to reproduce, and how to fight HIV infection.
This video explains how HIV enters the host cell, how it co-opts the cellular machinery to reproduce, and how to fight HIV infection.
Este interactivo desplegable repasa el modo en que la información de una
molécula de ARN mensajero (ARNm) se traduce para crear una proteína
funcional en células procariotas.
This scrollable interactive reviews how the information in a DNA molecule is transcribed to create a messenger RNA (mRNA) molecule in prokaryotic cells.
This scrollable interactive reviews how the information in a messenger RNA (mRNA) molecule is translated to create a functioning protein in prokaryotic cells.
