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
Fish locomotion is referred to as the movement of fish in water with the help of body muscles and fins. It is the process by which fish generate force against water to move from one place to another. This movement is carried out mainly for feeding, escaping from predators and migration. It is controlled by … Read more
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
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
Basidiomycetes are harmful as well as useful. Their attack foods and ornamental plants, cause many different diseases including seedling diseases, wood rots, root and stem rots, seed diseases (smuts), and rusts, on the other hand, it used as humans foods.
Phylum Nemathelminthes is a group of worm-like animals which was earlier used in classification and also referred to as Aschelminthes. It includes unsegmented, bilaterally symmetrical and triploblastic animals. These organisms are elongated and cylindrical in shape and the body is tapering at both ends. Because of this shape they are commonly called roundworms or threadworms. … Read more
Feeder pathway is the metabolic process in which different non-glucose carbohydrates are changed into intermediates that can enter glycolysis. It is the process that allows fructose, galactose, mannose and stored polysaccharides like glycogen to be converted into common glycolytic compounds. These intermediates then move into the normal glycolytic steps for further breakdown. In this pathway … Read more
What is Energy Flow in an Ecosystem? Energy flow models are used to show how energy passes through different trophic levels of an ecosystem. It shows the input of energy, transfer of energy and loss of energy in each level. Energy always move in one direction. It is not recycled like nutrients. The single channel … Read more
Transposable elements can be described as mobile genetic segments that is able to move from one position of the genome to another without the need of any homology. It is the process where small DNA sequences is shifted or sometimes replicated inside the chromosomes, and this movement is referred to as transposition. It is seen … Read more
What is Transposition? Transposition is the process in which a particular DNA sequence is shifted from one position of the genome to another position. It is the movement of a transposable element or jumping gene, and it is not dependent on any homologous sequence at the target site. It is the process that may occur … Read more
