Sourav Pan
Native PAGE is the method where proteins are separated in their original folded condition without any use of denaturing reagents. It is the process in which the movement of proteins in a polyacrylamide gel is controlled by the natural charge, size and the native conformation of the molecules. The proteins migrate through the gel matrix … Read more
What is Gal operon? The galactose operon is the unit in bacteria that is responsible for the metabolism of D-galactose, and it is organized with four structural genes (galE, galT, galK and galM). It is the process where these genes are required both for catabolic breakdown of galactose and for anabolic formation of compounds like … Read more
It is considered that the origin of chordates is deeply associated with the deuterostome lineage, where the early ancestors are sharing characters with hemichordates and echinoderms. In this group, the basic features such as a notochord, dorsal hollow nerve cord (DHNC), pharyngeal gill slits, post-anal tail and endostyle are present at some stage of development. … Read more
Domain Eukaryota Kingdom Animalia Phylum Chordata Subphylum Tunicata Class Ascidiacea Order Stolidobranchia Family Pyuridae Genus Herdmania Authority Lahille, 1888 What is Herdmania? Herdmania is a solitary ascidian which is included under the Subphylum Tunicata of the Phylum Chordata. It is a sessile marine animal and the adult remains attached to hard substratum like rocks or … Read more
Ribozymes are catalytic RNA molecules, and it is the process where RNA itself act as an enzyme in different biochemical reactions. It is the first biological evidence that RNA can work both as a genetic material and also as a catalyst. This is referred to as the dual activity of RNA, and it gives support … Read more
A fish is an aquatic vertebrate which is mostly characterized by the presence of gills throughout life, a streamlined body, and paired as well as unpaired fins which helps in swimming. It is the group that comprises jawless forms like hagfish and lampreys, cartilaginous fishes like sharks and rays, and the bony fishes which is … Read more
Agnatha is the superclass of vertebrates in which true jaws are absent. It is the group that represent the most primitive and earliest craniates, and in this group the mouth parts are simple without any jaw elements. It is the condition where the animals show a very old vertebrate body plan which is already present … Read more
What Is Induced Breeding (hypophysation)? Induced breeding is the process in which fishes are stimulated to reproduce under controlled conditions when natural spawning does not occur in captivity. It is the technique where hormonal preparations are used to activate the maturation of gonads and to release the gametes. This is referred to as hypophysation because … Read more
The fate of pyruvate is the different metabolic pathway in which pyruvate can enter after it is formed at the end of glycolysis. It is the process that depend on the presence or absence of oxygen in the cell environment. In aerobic condition, pyruvate is moved into the mitochondria where it is converted into Acetyl-CoA, … Read more
Different forms of DNA exist because the molecule can shift its structure when the surrounding conditions is changed. It is the property of DNA to show polymorphism, and this is the reason why B-DNA is not the only form present in cells. It is observed that the B-form is the common right-handed helix under normal … Read more
To continue with the best experience: