Amoeba Sisters
Before the Bell Biology: DNA Replication
Time before the bell to try 9 questions focused on DNA Replication? You'll also get answers complete with illustrations and explanations while music plays in the background. This particular video addresses when DNA replication starts,...
Bozeman Science
Unit 5 Review - Genetics
Paul Andersen reviews the major concepts within the fifth unit of the new AP Biology framework. He starts with a description of both DNA and RNA. He explains how DNA is copied during the S phase of mitosis. He explains how...
Bozeman Science
AP Biology - The Final Review
The final AP Biology Review. Chapters View all AP Biology 0:07 Section : Multiple Choice 1:00 Hardy-Weinberg 3:23 Chi-squared Test 5:29 Null Hypothesis 6:16 Respiration 7:30
TED Talks
Sugata Mitra: Build a School in the Cloud
Onstage at TED2013, Sugata Mitra makes his bold TED Prize wish: Help me design the School in the Cloud, a learning lab in India, where children can explore and learn from each other -- using resources and mentoring from the cloud. Hear...
TED-Ed
TED-Ed: What happens when your DNA is damaged? - Monica Menesini
The DNA in just one of your cells gets damaged tens of thousands of times per day. Because DNA provides the blueprint for the proteins your cells need to function, this damage can cause serious issues-including cancer. Fortunately, your...
Bozeman Science
Meselson-Stahl Experiment
Paul Andersen explains how the Meselson-Stahl experiment was used to prove that DNA copied itself through a semi-conservative process. They grew E. coli in a medium containing heavy nitrogen (N-15). They then added the E. coli to a...
Amoeba Sisters
Mutations (Updated)
Join the Amoeba Sisters as they explain gene and chromosome mutations, and explore the significance of these changes. This updated video has improved audio and images! Codons and the amino acids they code for is represented by standard...
Bozeman Science
Genotypes and Phenotypes
Paul Andersen explains how changes in the genotype of an individual can affect the phenotype. He begins with genotype:phenotype::letters:story analogy. He explains how mutations can be neutral, beneficial or harmful. He also explains how...
SciShow
How Extreme Microbes Are Helping Us Test for COVID-19
Microbes that live in extreme environments, like geysers and hydrothermal vents, are able to survive in extreme temperatures. Scientists have figured out ways to use this thermostability to supercharge DNA studies, including the study of...
Amoeba Sisters
DNA Replication (Updated)
Explore the steps of DNA replication, the enzymes involved, and the difference between the leading and lagging strand! This video is an update from our old DNA replication video with nearly the same script but added detail and improved...
Amoeba Sisters
Mitosis: The Amazing Cell Process that Uses Division to Multiply! (Updated)
Updated Mitosis Video. The Amoeba Sisters walk you through the reason for mitosis with mnemonics for prophase, metaphase, anaphase, and telophase. Table of Contents: 00:00 Intro 0:44 Why is Mitosis Important? 2:00 Why Don't You Want...
Bozeman Science
DNA Replication
Paul Andersen explains how DNA replication ensures that each cell formed during the cell cycle has an exact copy of the DNA. He describes the Meselson-Stahl experiment and how it showed that DNA copies itself through a semi-conservative...
Bozeman Science
What is DNA?
Paul Andersen describes the molecular structure of DNA. He describes the major parts of a nucleotide and explains how they are assembled into a nucleic acid. The nitrogenous base, deoxyribose sugar and phosphate group make up a single...
Bozeman Science
DNA and RNA - Part 2
Paul Andersen continues his description of DNA and RNA. He begins with the structure of DNA and RNA and moves into the process of DNA Replication. He also describes the central dogma of biology explaining how DNA is transcribed to mRNA...
Curated Video
Chromatin
The basic substance of chromosomes, in which DNA is wrapped around structural proteins called histones. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
Curated Video
Mutation
A change in a DNA sequence. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract concepts and key curriculum...
Curated Video
DNA replication
An essential stage in cell division and reproduction, allowing genetic material to be copied into a new cell. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual...
Wonderscape
Bacteria Reproduction: Unveiling Microbial Multiplication
This video explains how bacteria reproduce, primarily through binary fission, where a single cell duplicates its DNA and divides into two identical cells. It highlights factors influencing bacterial multiplication, like moisture,...
Curated Video
Protein Synthesis: Transcription
A video explaining and illustrating all steps of transcription.
Curated Video
Explanation and Animation of DNA Replication
A video explaining and illustrating all steps of DNA replication including an overview of replication, an explanation of the leading and lagging strands, and the replication bubbles.
Catalyst University
Interphase and Regulation of Cell Cycle by CDKs and Cyclin
Interphase and Regulation of Cell Cycle by CDKs and Cyclin
Catalyst University
p53, Mitosis, and Apoptosis for Anatomy and Physiology
p53, Mitosis, and Apoptosis for Anatomy and Physiology
Kult America
Death, Heritage, and Poland
Last September I received a phone call informing that my estranged father had passed away. At his funeral in Chicago a family member presented me an old photo album, but she was unsure of who it once belonged to, though they suspected...