feedingthenext

  What is PCR??  Stands for "polymerase chain reaction" What are DNA Polymerases?? These are the enzymes used in the PCR.  In this article, I will cover the structure, important characteristics and the different variants of DNA polymerases. DNA polymerases are enzymes responsible for assembling nucleotides to create new DNA molecules. These DNA polymerases are indispensable to cell divisions as they duplicate the genetic information that would be passed to the next generation of daughter cells. One of the most fundamental technologies in genetic and molecular research is the Polymerase Chain Reaction also known as PCR. PCR utilizes the ability of DNA polymerase to replicate DNA strands by amplifying a large amount of DNA from a small amount of nucleicacids.  Throughout the years, scientists have utilized different variants of DNA polymerases for different applications.  All these DNA polymerases have a similar shape, in that they re

  Life cycle of desert locust ( Schistocerca  gregaria ) Life cycle of locust has 3 main life stage - egg, nymph or hopper (5 nymphal instars) and adult. It takes about 8 weeks to  complete the life cycle.  Desert locust ( Schistocerca  gregaria) However, the duration of locust life  cycle is variable and depends on the various climatic conditions and type of species of locusts as well. As African locusts can have 3 -5 generations per year. How locust is different from grasshopper? Actually, both are same. Green grasshopper is generally solitary feeder while the brown Locusts (short horned grasshopper) are both solitary and gregarious. REASON - Increase in serotonin concentration in the  grasshopper and  favourable climatic changes turn them into gregarious (feeding in group) and devastating locusts, that can damage acres of crop in just few minutes and hours. Do they harm humans? No, they don’t