Bacterial Conjugation Conjugation is the direct transfer of DNA from one bacterial cell to another bacterial cell. The transferred DNA is a plasmid, a circle of DNA that is distinct from the main bacterial chromosome. The F plasmid is similar to a virus or a transposon in its ability to move independently of the main […]
Bacterial Conjugation Read More »
Cloning Vector A cloning vector is a DNA molecule in which foreign DNA can be inserted or integrated and which is further capable of replicating within host cell to produce multiple clones of recombinant DNA. Such a vector is called Cloning Vector. Plasmids and phages are the vectors used for cloning purposes, particularly in prokaryotes
Importance of Fish Migration Many types of fish undertake migrations on a regular basis, on time scales ranging from daily to annual, and with distances ranging from a few meters to thousands of kilometers. The purpose usually relates to either feeding or breeding; in some cases the reason for migration is still unknown. Factors Influencing
Importance of Fish Migration Read More »
Prions as Microbes Prion diseases have long fascinated biologists, because of the unusual nature of the infectious agent. Recently, prion diseases have become a major news story because of the emergence of the bovine (cow) prion disease BSE, which can be transmitted to humans as the disease vCJD. Introduction Prions are infectious agents that long
Prions as Microbes Read More »
Asthma Asthma is a chronic long-term lung disease that inflames and narrows the airways. Asthma causes recurring periods of wheezing (a whistling sound when we breath), chest tightness, shortness of breath, and coughing. The coughing often occurs at night or early in the morning. Asthma affects people of all ages, but it most often starts
Regulation of gene expression in developmental process Gene expression is a complex, regulated process that begins with DNA duplication, DNA transcription in which DNA transcribed into RNA, which is then translated into protein. Each somatic cell in the body generally contains the same DNA. A few exceptions include red blood cells, which contain no DNA
Regulation of gene expression in developmental process Read More »
Vedas & Environmental law Environment plays a very significant role in human civilization. Human beings have close relations with the biosphere in which they live. The whole environment and ecology consisting of earth, air, water, plants and animals provide the necessary and sufficient conditions for sustaining human life. the vedic vision to live in harmony
Vedas & Environmental law Read More »
Migration in Birds Bird migration refers to the seasonal journeys to and from a given area undertaken by all or part of a bird population. Not all bird species (or even populations within the same species) are migratory. In contrast to more irregular movements such as emigration, nomadism, and invasion, which are made in response
Migration in Birds Read More »
Nardostachys jatamansi: A Potential Medicinal Herb of Himalayas The Indian Himalayan Region has been regarded as the repository of potential medicinal herbs since time immemorial. A large number of Medicinal and Aromatic Plants (MAPs) have been distributed within different forests along an altitudinal gradient. One of such vital plants of Uttarakhand Himalayas is Nardostachys jatamansi,
Nardostachys jatamansi: A Potential Medicinal Herb of Himalayas Read More »
Global Dimming? Global dimming is natural phenomenon resulting by atmospheric pollution. This atmospheric pollution causes significant reduction in incoming solar radiation towards earth. So, global dimming is defined as the decrease in the amounts of solar radiation reaching the surface of the Earth.