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...

Blood grouping is based on the presence of specific antigens—A, B, and H—on red blood cells, encoded by the ABO gene system. Individuals with blood type A have A antigens and anti-B antibodies, B has B antigens and anti-A antibodies, AB...

Practice life sciences questions using real examples from 2012.

The ABO gene on chromosome 9 encodes enzymes that determine an individual’s blood group by modifying the H antigen into A or B antigens via glycosyltransferases. The A allele produces an enzyme that adds N-acetylgalactosamine (GalNAc),...

Unlike SDS–PAGE, which denatures proteins, native or buffer gels maintain proteins in their functional state, allowing detection of enzymes based on biological activity. Proteins are separated by their native charge and size, and enzyme...

This video is answering the question of what is an enzyme.

This video is answering the question of how are enzymes used in daily life.

This video is answering the question of what is metabolism.

This video is answering the question of what is an enzyme substrate.

This video is answering the question of what are metabolic reactions.

Lactose intolerance is quite common, especially in Asian countries. The reason behind this is gene-culture co-evolution. Lactose intolerance is the inability to digest lactose in milk because they lack the lactase enzyme. A 1981 study...

Short answer: Yes, drinking a lot of water will certainly change the pH of the stomach, but this amount is trivial. However, since your stomach is very acidic, to begin with, drinking water will not dilute it significantly. Also, there...

The infamous “serial killer gene� is the monoamine oxidase-A gene, also known as the MAO-A gene or the warrior gene. It codes for an enzyme that metabolizes neurotransmitters such as dopamine, norepinephrine, and serotonin. Dopamine...

When it comes to mammals, we are the only species that drinks milk directly from other species, or we are the only one that does so in adulthood. Most juvenile animals can drink and digest their mothers milk because they carry the enzyme...

An important digestive enzyme which breaks down starch into sugar.
<

br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...

In materials science, the substrate is the surface on which a coating is deposited.
<

br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

An essential stage in cell division and reproduction, allowing genetic material to be copied into a new cell.
<

br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images...

The process by which microorganisms can convert carbohydrates into other products.
<

br/>

A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

Proteins are at the root of virtually all bodily functions, from growth to metabolism to transporting oxygen around the body. Learn how your body makes or ingests all the protein you need. Chemistry - Chemical Industries - Learning...

We use the enzyme pepsin and hydrochloric acid to simulate the conditions within the stomach in two boiling tubes. Cooked egg whites are ground and added to two boiling tubes of hydrochloric acid, but one is mixed with a crushed antacid...

We demonstrate denaturing by adding the enzyme trypsin to photographic film. Strips of photographic film are added to trypsin solution at different temperatures to determine the optimum conditions for the enzyme. In the right conditions...

Discover the chemical process which produces some of our most common foodstuffs, from bread to yoghurt, to wine and vinegar. Chemistry - Chemical Industries - Learning Points. Fermentation is the process of converting sugar and other...

A biological catalyst. Enzymes are specialised proteins that speed up biochemical reactions. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...

Zoom into the world of 'Enzymes,' where kids will learn how these tiny but mighty helpers speed up reactions in our bodies! It's a microscopic journey to see the science that makes us work.