Sourav Pan
Pureline selection is a method used in plant breeding where plants are chosen from a single self-pollinated variety to create a population that is genetically uniform. It was first introduced by Johannsen (1903) while working with beans (Phaseolus vulgaris). The method based on assumption that variation seen in self-pollinated crops is mostly due to environment … Read more
What is Budding? Definition of Budding Budding is a form of asexual reproduction in which a new organism develops from an outgrowth or “bud” on the parent organism, eventually detaching to live independently. Types of Budding I. Types of Biological Budding (Asexual Reproduction) II. Types of Horticultural Budding (Plant Grafting Techniques) 1. Budding in Plants … Read more
What is Nondisjunction? Types of Nondisjunction Causes of Nondisjunction Molecular Biology of Nondisjunction Consequences of Nondisjunction The nondisjunction is the failure when chromosomes don’t separate properly during cell division (like meiosis/mitosis), causing abnormal number of chromosomes in daughter cells. Such imbalance is termed as aneuploidy, sometimes loss of one (monosomy 2n–1) or gain of one … Read more
Membrane Filter Technique can define as a physical separation process, which based mainly on size / molecular weight of particles in a liquid or gas stream. In this method a thin semi-permeable membrane (often made from cellulose nitrate/acetate) is used, and pressure is applied to push the feed solution by it. The smaller components pass … Read more
Definition of Stage Micrometer A stage micrometer is a calibrated slide with a ruled scale used to calibrate microscopes and measure the size of objects under a microscope. Principle of Stage micrometer Parts of Stage micrometer Types of Stage Micrometer A. Based on Scale Design / Measurement Function B. Based on Physical Construction/ Traceability C. … Read more
Method of Calibrating a Microscope Importance of Microscope Calibration FAQ
Definition of Vortex Mixer A vortex mixer is a laboratory device that uses rapid circular oscillations to create a swirling motion, or vortex, in small volumes of liquid samples for efficient mixing and blending. Principle of Vortex Mixer Parts of Vortex Mixer Operating Procedure of Vortex Mixer To operate a vortex mixer, follow these steps: … Read more
Homogenizer Definition A homogenizer is a device used to mix, emulsify, and evenly distribute particles in liquids, creating a uniform and homogeneous mixture. Principle of Homogenizer Parts of Homogenizer 1. Homogenizing Valve – It is the main part where actual homogenization occur, the liquid is forced by a very small gap creating high velocity & … Read more
Definition of Incinerator An incinerator is a specialized furnace designed for burning potentially dangerous materials in a controlled manner, typically at high temperatures, to eliminate pollutants and safely dispose of waste. Working principle of Incinerator Operating procedure of Incinerator Parts of Incinerator Primary Chamber – It is the main combustion chamber where the waste materials … Read more
Definition of Hot Plate A hot plate is a portable heating device with a flat surface used to heat samples or materials in a controlled manner without the need for an open flame. Principle of Hot Plate The functional principle of a laboratory hot plate is that an electric current is passed through a heating … Read more
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