This scrollable interactive demonstrates how restriction enzymes (also called endonucleases) work and why they can be used as tools to analyze DNA and create recombinant plasmids.
The Genetics Student Edition book is one of ten volumes making up the Human Biology curriculum, an interdisciplinary and inquiry-based approach to the study of life science.
The Lives of Cells Student Edition book is one of ten volumes making up the Human Biology curriculum, an interdisciplinary and inquiry-based approach to the study of life science.
Explains the goals of the Human Genome Project. It also explains some of the ethical, legal and social challenges associated with this new technology.
Students are introduced to the latest imaging methods used to visualize molecular structures and the method of electrophoresis that is used to identify and compare genetic code (DNA). Students should already have basic knowledge of genetics, DNA (DNA structure, nucleotide bases), proteins and enzymes. The lesson begins with a discussion to motivate the need for imaging techniques and DNA analysis, which prepares students to participate in the associated two-part activity: 1) students each choose an imaging method to research (from a provided list of molecular imaging methods), 2) they research basic information about electrophoresis.
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.
This pathway outlines the process of genetic engineering with a focus on gene cloning. This pathway also provides an introduction for the ABE lab series.
Students learn how engineers apply their understanding of DNA to manipulate specific genes to produce desired traits, and how engineers have used this practice to address current problems facing humanity. They learn what genetic engineering means and examples of its applications, as well as moral and ethical problems related to its implementation. Students fill out a flow chart to list the methods to modify genes to create GMOs and example applications of bacteria, plant and animal GMOs.
Could a Tyrannosaurus be created in a modern-day lab? Join paleontologist, Jack Horner, in using protein sequencing to find the closest relative to the T-Rex, and then hypothetically re-creating a specimen in the lab.
This interactive introduces how HIV enters the host cell and uses its resources to
reproduce.
The human genome serves as an instruction manual for life, with its own distinct letters, alphabet, sentences and chapters. Learn about the genome, nucleotides, DNA and genes with this interactive lesson.
This simulation provides the opportunity to practice performing a ligation
reaction in a virtual lab setting. This process uses the enzyme DNA ligase
to attach two DNA fragments using complementary blunt or sticky ends
generated from a restriction enzyme digest.
Esta simulação proporciona a oportunidade de praticar uma reação de ligação em um cenário de laboratório virtual. Este processo usa a enzima DNA ligase para ligar dois fragmentos de DNA usando extremidades cegas ou coesivas complementares geradas a partir da digestão de uma enzima de restrição.
Diese Simulation bietet die Möglichkeit, die Durchführung einer Ligationsreaktion in einer virtuellen Laborumgebung zu üben. Bei diesem Prozess wird das Enzym DNA-Ligase verwendet, um zwei DNA-Fragmente mit komplementären stumpfen oder kohäsiven Enden, die aus einem Restriktionsenzymverdau stammen, zu verbinden.
This pathway provides an overview of biological macromolecules and their properties. The resources in this pathway can be used to introduce or review the structure and function of lipids, carbohydrates, proteins, and nucleic acids. For a deeper look at this topic, we recommend the pathway Biological Macromolecules from the OpenStax textbook Biology for AP® Courses.
A video discussing the molecular structure of DNA. Understand that DNA is made up of a phosphate, deoxyribose sugar, and one of the four nitrogen base. Video also explains how the nitrogen bases pair up to form the double helix structure. Also learn how DNA stores the genetic information for organisms. [13:01]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Students learn about the growth of cancer through an analogy of a kitchen with an appliance running out of control. Together, student learners investigate case studies of three patients with lung cancer and determine the cell mutation which exists in each case.
At the beginning of a DNA, DNA replication, and mitosis unit, students are given a short science news article summarizing a recent research paper. This assignment links the article to figures and key techniques from a related journal article, requiring students to apply and transfer the knowledge they gained in the unit.
Matt Meselson takes us on a journey through his long and storied career, including 60 years as a Harvard biology professor. From memories of his earliest science experiments as a small child to his non-traditional learning path, which included service learning during WWII, to musings on the spirit of cooperation in managing a pandemic and the future of biology and humanity, this episode gives us an insight into a legendary figure in biology. A new virtual interview series from LabXchange at Harvard University, the Xchange showcases the diverse roles, projects, and initiatives that make up the intersecting fields of science, education, and health. Hosted by LabXchange Faculty Director Robert Lue, our first season features a range of perspectives on the impact of COVID-19. View this video (and more like it) on LabXchange: https://www.labxchange.org/
Download and read Maurice Wilkins Nobel Lecture "The molecular configuration of nucleic acids." This lecture, originally given December 11, 1961, is available in pdf format.