DNA vs. RNA – 5 Key Differences and Comparison
Jan 22, 2024 · 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.
Prokaryotes vs Eukaryotes: What Are the Key Differences?
Jun 26, 2024 · In prokaryotes, DNA is bundled together in the nucleoid region, but it is not stored within a membrane-bound nucleus. The nucleus is only one of many membrane-bound organelles in eukaryotes. Prokaryotes, on the other hand, have no membrane-bound organelles. Another important difference is the DNA structure.
Genotype vs Phenotype: Examples and Definitions
Sep 12, 2022 · Understanding the relationship between a genotype and phenotype can be extremely useful in a variety of research areas. A particularly interesting area is pharmacogenomics.Genetic variations can occur in liver enzymes required for drug metabolism, such as CYP450.Therefore, an individual’s phenotype, i.e. their ability to metabolize a specific drug, may vary depending on which form of the ...
Cation vs Anion: Definition, Chart and the Periodic Table
Jan 24, 2024 · 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 ...
GC-MS Principle, Instrument and Analyses and GC-MS/MS
Feb 16, 2024 · The sample mixture is first separated by the GC before the analyte molecules are eluted into the MS for detection. 1 They are transported by the carrier gas (Figure 1 (1)), which continuously flows through the GC and into the MS, where it is evacuated by the vacuum system (6). 1. The sample is first introduced into the GC manually or by an autosampler (Figure 1 (2)) and enters the carrier gas ...
SEM vs TEM - Technology Networks
Jan 24, 2024 · Even the basic microscope setup is different. 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.
Phagocytosis vs Pinocytosis: Definition and Function
Mar 21, 2022 · Phagocytosis and pinocytosis are biological processes wherein a cell senses and engulfs nearby material. These processes enable cells to intake substances that can’t easily pass through the cell membrane. However, phagocytosis and pinocytosis are forms of endocytosis that differ in several ways including how they intake material and the type ...
Active vs Passive Immunity: Differences and Definition
Dec 18, 2023 · 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 large numbers of T cells and B cells ...
LC-MS – What Is LC-MS, LC-MS Analysis and LC-MS/MS
Jul 30, 2024 · 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.
Paired vs Unpaired T-Test: Differences, Assumptions and Hypotheses
Jan 24, 2024 · The key differences between a paired and unpaired t-test are summarized below. A paired t-test is designed to compare the means of the same group or item under two separate scenarios. An unpaired t-test compares the means of two independent or unrelated groups. In an unpaired t-test, the variance between groups is assumed to be equal.