Your genetic code is neat, but could be better!

People like to say all kinds of things about protein – like, you need to eat lots of it to build muscle and lose weight. The truth is, the science of protein and how your body uses it is much more complicated than that.

Paul Andersen describes the four major biological molecules found in living things. He begins with a brief discussion of polymerization. Dehydration synthesis is used to connect monomers into polymers and hydrolysis breaks them down...

Paul Andersen explains the structure and importance of proteins. He describes how proteins are created from amino acids connected by dehydration synthesis. He shows the importance of chemical properties in the R-groups of individual...

Mr. Andersen explains the Central Dogma of biology. He shows how DNA is transcribed to form mRNA and how mRNA is translated into a protein.

In this video Paul Andersen describes the structure and explains the properties of molecular solids. High intramolecular forces hold electrons and reduce conductivity, whereas low intermolecular forces decrease the melting point. ...

Paul Andersen explains the central dogma of biology. He explains how genes in the DNA are converted to mRNA through the process of transcription. He then explains how ribosomes use this message to convert the mRNA to a functioning...

Paul Andersen explains how polymers are formed from monomers. He describes how carbohydrates, protein and nucleic acids are created through condensation reactions. He also explains how these macromolecules are broken down through the...

Hank tells us about the city of Eukaryopolis - the animal cell that is responsible for all the cool things that happen in our bodies.

Paul Andersen explains the structure, function and importance of adenosine triphosphate (ATP). He begins by describing the specific structure of the molecule and its three main parts: adenine, ribose sugar, and phosphate groups. He...

Howcast - Learn about how branched chain amino acids, or BCAA, help build muscle from DreamBodies' Tony DiCostanzo in this Howcast bodybuilding video.

Howcast - Learn if amino acids help build muscle from DreamBodies' Tony DiCostanzo in this Howcast bodybuilding diet video.

Howcast - A cupcake may briefly lift your spirits, but these dietary changes can keep you happier in the long run.

Isoelectric focusing (IEF) is a high-resolution protein separation technique that separates proteins based on their isoelectric points (pI) using a pH gradient in an electric field. Proteins migrate to the region where their net charge...

The video contains tricks to easily remember point mutations

Amino acids are the building blocks of proteins, each composed of a central (alpha) carbon bonded to a hydrogen atom, amino group, carboxyl group, and a variable "R" group that defines its properties. Out of hundreds found in nature, 20...

Zinc Finger Nucleases (ZFNs) are engineered molecular tools composed of a zinc finger DNA-binding domain fused to a FokI DNA-cleavage domain, allowing precise targeting and cutting of specific DNA sequences. Once the DNA is cut, natural...

In this video, we explore what peptide bonds are, their crucial role in protein synthesis, and the fascinating process of their formation. Understand where peptide bonds are found in nature and their significance in biology and...

What is an amino acid? Learn about the structure, classification, types and functions of amino acids in this fun video.

There are 4 main types of carbon-based molecules important to life. They are the building blocks for every living organism on this planet. In this video, I will give you a quick introduction to each type with some fun examples.

DNA (deoxyribonucleic acid) is a molecule that is often called the blueprint of life. Located in the nucleus, the DNA is a very long molecule with a helix winding structure like a twisted ladder. The rungs of the ladder are made of four...

A mutation is a random change in the DNA. Mutations can be neutral, which means it does not cause a change in a trait of the organism, or it could cause a beneficial or a harmful mutation. There are a few different types of mutations -...

To change the shape of a protein or amino acid molecule, disrupting its normal biological activity, but without changing it chemically.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60...

The building blocks of proteins and polypeptides.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...