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.

In dieser Simulation können Teilnehmer die Verwendung einer Mikropipette in einer virtuellen Laborumgebung üben. Zu den in dieser Simulation im Vordergrund stehenden Fähigkeiten gehören die Dispensierung verschiedener Flüssigkeitsvolumen mit einer P20-Mikropipette und die Verwendung des ersten und zweiten Anschlags.

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.

This pathway explores the essential concepts of magnets and magnetic fields. The relationship between magnets and the fields they produce is explained, as well as some of the contemporary applications of magnetism in medical diagnostics and quantum mechanics. Problems are provided to check for understanding.

This pathway introduces the units scientists use when making measurements and how to judge and express the meaning and level of confidence in a measurement.

Chemistry is often defined as the science of matter and how it changes. This pathway introduces the composition of matter and the physical and chemical changes it can undergo.

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/

This interactive allows to explore the mechanism of how CRISPR-Cas9 facilitates the double-stranded cutting of DNA.

In collaboration with graduate students at Harvard University, LabXchange has created method videos that demonstrate laboratory techniques while highlighting the rationale behind the steps and proper safety precautions.

Cette simulation permet à l’utilisateur de s’entraîner à utiliser une micropipette dans un environnement de laboratoire virtuel. Les compétences soulignées dans cette simulation incluent la distribution de différents volumes de liquide avec une micropipette P20 et en utilisant le premier et second arrêt.

Bu videoda Dave ve Mary adlı öğretmenler, mikropipetin nasıl kullanıldığını ve bu ekipman parçasının laboratuvarda neden gerekli bir araç olduğunu ayrıntılarına kadar açıklıyor.

Bu simülasyon, kullanıcılara sanal bir laboratuvar ortamında mikropipet
kullanımı ile ilgili pratik yapma olanağı sağlamaktadır. Bu simülasyonda
üzerinde durulan beceriler, P20 mikropipet ile farklı hacimlerde sıvı
aktarmayı ve birinci kademe ile ikinci kademeyi kullanmayı içermektedir.

This method video introduces the concept of molarity and illustrates how to perform the necessary calculations to create a serial dilution.

This lab video demonstrates how to make a one molar stock solution and serially dilute it.

The spacial arrangement of atoms in a molecule has a massive role in the properties of that substance. This pathway provides resources to explain why molecules take the shapes that they do, and how to determine what shape the molecule will take.

This pathway explores the concept of momentum. Momentum as a quantity is defined, and its relationship to force explained. The law of conservation of momentum is introduced, as well as the term impulse. Problems are included at the end of the chapter to check for understanding.

This pathways exapnds the concepts of motion from one dimension into two dimensions. Two key applications of this are the pendulum and projectile motion. The pathways concludes with questions that test understanding of the topic.

At LabXchange, we want you to see yourself in STEM. On our free online platform, you will find narratives from scientists of diverse backgrounds. These personal stories reveal the personal and social contexts that influence scientific discovery. When you learn about how people started their careers in science, you will see that scientists are people like you.

This pathway provides an introduction to nucleic acids and their role in providing heritable information in cells. For a deeper look at this topic, we recommend the pathway DNA Structure and Function from the OpenStax textbook Biology for AP® Courses.

This interactive outlines the nature of nucleotide base-pairing and the structure of DNA