DNA vs. RNA – 5 Key Differences and Comparison
WEBDec 18, 2020 · DNA is a much longer polymer than RNA. A chromosome, for example, is a single, long DNA molecule, which would be several centimetres in length when unraveled. RNA molecules are variable in length, but much shorter than long DNA polymers. A large RNA molecule might only be a few thousand base pairs long. Sugar.
Cation vs Anion: Definition, Chart and the Periodic Table
WEBAug 15, 2019 · Cation vs anion periodic table. It can be possible to predict whether an atom will form a cation or an anion based on its position on the periodic table. Halogens always form anions, alkali metals and alkaline earth metals always form cations. Most other metals form cations (e.g. iron, silver, nickel), whilst most other nonmetals typically form ...
Prokaryotes vs Eukaryotes: What Are the Key Differences?
WEBJul 8, 2021 · The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is where eukaryotes store their genetic information. In prokaryotes, DNA is bundled together in the nucleoid region, but it is not stored within a membrane-bound nucleus.
Essential Amino Acids: Chart, Abbreviations and Structure
WEBSep 26, 2019 · What is the structure of the amino acids? An amino acid’s structure consists of a central carbon atom attached to a hydrogen, an acidic carboxyl group (−COOH), an amino group (−NH2) and an organic side chain (also called an R group). The side chain is unique in each of the 20 amino acids. Amino acid. Abbreviation.
IR Spectroscopy and FTIR Spectroscopy: How an FTIR …
WEBAug 16, 2022 · The human eye can only see a small part of the much broader spectrum of electromagnetic radiation (Figure 1). On the high-energy side of the visible spectrum lies the ultraviolet (UV) region, while on the lower energy side is the infrared (IR).
Active vs Passive Immunity: Differences and Definition
WEBMay 20, 2020 · Active immunity is defined as immunity to a pathogen that occurs following exposure to all or part of that pathogen. When the body is exposed to a novel disease agent, a cascade of signaling molecules and action from the innate immune system results in activation of the adaptive immune system. Production of …
SEM vs TEM - Technology Networks
WEBFeb 25, 2020 · In SEM, the sample, located at the base of the electron column, is scanned and the resulting electron scattering is analyzed to produce an image. In TEM, the sample is placed in the middle of the microscope and electrons pass through the sample before being collected. TEM offers information on ultrathin samples' inner structure, while SEM ...
UV-Vis Spectroscopy: Principle, Strengths and Limitations and ...
WEBJun 30, 2021 · Ultraviolet-visible (UV-Vis) spectroscopy is a widely used technique in many areas of science ranging from bacterial culturing, drug identification and nucleic acid purity checks and quantitation, to quality control in the beverage industry and chemical research. This article will describe how UV-Vis spectroscopy works, how to analyze the output data, the technique's strengths and limitations ...
LC-MS – What Is LC-MS, LC-MS Analysis and LC-MS/MS
WEBMay 17, 2021 · Coupling liquid chromatography (LC) with mass spectrometry (MS) has provided scientists with a powerful tool to meet stringent analytical demands and their versatility and efficiency means LC-MS instruments have become desirable in many laboratories. In this article, we consider how LC-MS works, what it tells us and highlight some of the technique's strengths and weaknesses.
An Introduction to Culturing Bacteria - Technology Networks
WEBNov 9, 2021 · Bacteria are an important part of the production of many foods and are broadly split into probiotics and starter cultures. Probiotics are generally cultured for their benefit to human health, 18 often through our gut microbiome. While probiotics may contain many different bacterial species, Lactobacillus and Bifidobacterium are common choices ...
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