Mumps Virus – Definition, Replication, Structure, Genome, Pathogenesis

Mumps Virus - Definition, Replication, Structure, Genome, Pathogenesis

Mumps virus (MuV) is the causative agent of the acute infectious disease known as mumps. It is scientifically classified as Orthorubulavirus parotitidis and belongs to the family Paramyxoviridae. It is an enveloped virus having single-stranded negative sense RNA genome and the viral particle is pleomorphic in nature with size ranging from about 100–600 nm. Humans … Read more

Arneth Count for Neutrophils – Principle, Procedure, Result, Uses

Arneth Count for Neutrophils: Principle, Procedure and Clinical Significance

The Arneth count is a hematological method used for the classification of neutrophils based on the number of lobes present in the nucleus. It is the process in which neutrophils are grouped into different classes according to nuclear segmentation and this helps in understanding the age and functional status of the cells. In this method … Read more

BOD Incubator – Principle, Parts, Procedure, Application

BOD Incubator - Definition, Principle, Components, Procedure, Application

A BOD incubator is a laboratory instrument that is used for maintaining a controlled temperature environment required for the estimation of Biochemical Oxygen Demand of water samples. It is designed to operate both at heating and cooling conditions which is different from ordinary incubators. It is mainly adjusted at a fixed temperature of 20°C which … Read more

Lipase Test – Principle, Procedure, Results, Uses

Lipase Test Principle, Procedure, results

A lipase test is a laboratory diagnostic test which is done to measure the level of lipase enzyme in the blood. Lipase is a digestive enzyme which is mainly produced by pancreas and it helps in digestion of fats. It is the process in which dietary triglycerides are broken down into fatty acids and glycerol … Read more

API (Analytical Profile Index) 20E Test Result, Principle, Procedure

API (Analytical Profile Index) 20E Test Result, Principle, Procedure

What is API (Analytical Profile Index) 20E Test? The API (Analytical Profile Index) 20E test is a standardized biochemical identification system used for the identification of Enterobacteriaceae and other non-fastidious Gram-negative rods. It is developed as a miniaturized system where a number of biochemical reactions are carried out simultaneously in a single plastic strip. It … Read more

Speciation – Definition, Causes, Types, Process

Speciation - Definition, Causes, Types, Process

What is Speciation? Speciation is the evolutionary process by which new species are formed from a pre-existing species. It is the process where a single ancestral population is gradually divided into two or more distinct species. This process occurs when population of a species becomes isolated from each other and the gene flow between them … Read more

Eggs – Types, Structure, Egg Membranes, Examples

Types of Eggs and Egg Membranes

An egg is a biological structure which contains the female gamete and after fertilization it carries the developing embryo. It is an organic vessel that provides protection and nourishment to the embryo till hatching or birth. The major internal component of egg is yolk (vitellin) which acts as reserve food material and supplying energy for … Read more