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Learn the difference between independent and dependent variables with definitions, examples, types, and FAQs. Easy guide for students and biology research.
A colony counter is a device used to count bacterial, fungal, or other microorganism colonies that grow on solid culture plates. It is widely used in microbiology, food industries, pharmaceuticals, environmental labs, and clinical diagnostics.
Gel electrophoresis is mainly used to separate DNA, RNA, and proteins based on their size, charge, and shape. It is one of the cornerstones of molecular biology and biotechnology. Gel electrophoresis is like a molecular sieve that helps scientists “see” and separate biomolecules.
Descriptive studies are types of research that focuses on describing the distribution of disease, health conditions, or other characteristics in a population.
Biological Safety Cabinets (BSCs), also called biosafety cabinets or microbiological safety cabinets, are enclosed ventilated laboratory workspaces designed to protect personnel, samples, and the environment from biohazardous materials.
A laboratory water bath is one of the most essential and commonly used instruments in biology, chemistry, medical, and industrial laboratories. It is primarily used for incubating samples at a constant temperature over a long period of time.
A vortex mixer (also called vortexer) is a small, simple, yet very useful laboratory device designed for mixing liquids quickly and efficiently. It works by creating a vortex (whirlpool-like motion) in the liquid, which ensures thorough mixing of contents.
A homogenizer is a very important laboratory and industrial instrument used for preparing uniform mixtures and suspensions. The term “homogenize” literally means “to make the same throughout.” In science, technology, and industries, many processes require samples to be broken down, mixed, or dispersed in such a way that every portion of the mixture has the same composition.
Two of the most common mistakes in research are Type I error and Type II error. This article explains what Type I and Type II errors are, their causes, probabilities, differences, and real-life examples in simple, clear language.
A colorimeter is a laboratory instrument used in colorimetry to measure how much light a solution absorbs or transmits. It helps determine the concentration of colored compounds in a solution by comparing it with a standard reference solution.