Nutrient broth is a microbial culture medium. Microbial culture media without solidifying agents such as agar and gelatin are known as liquid media. Another name for liquid media is liquid broth. The liquid broth is used to grow bacteria in large…
DRDO is a premiere central government organization under the Ministry of Defence, Govt of India. There are many DRDO laboratories such as DFRL, DIPAS, INMAS, DRDE, and DIBER where R & D work is being done in the Life Science…
Differential staining procedures require more than one dye for staining. Two important differential staining procedures are Gram’s staining method and the acid-fast staining method. In the gram staining procedure, gram-positive cells stain purple in color, whereas the acid-fast staining procedure differentiates…
Benzene is a cyclic compound present in coal tar and natural crude oil. Most of the dyes are the derivative of this cyclic compound benzene. So dyes are also called coal tar dyes. Microbiologists use different types of dyes and…
Microorganisms such as bacteria are very small, colorless, and transparent. As a result we cannot see these microorganisms with naked eyes. The reason why we can’t see microorganisms is that they lack contrast. In other words, without contrast and color,…
Bureau of Indian Standards (BIS) Microbiology recruitment 2022 details: If you have a degree in microbiology subject then the Bureau of Indian standards is offering a golden opportunity to work in various BIS laboratories in India. The Bureau of Indian…
Gram staining procedure is a popular and widely used method in microbiology. To study and identify any new bacteria usually the first step performed is gram staining. In 1884 Danish Physician Dr. Hans Christian Gram developed this staining procedure. Gram’s…
Our life is full of microorganisms. We daily come into contact with thousands of microbes. The water, air, food, soil all contain a wide variety of microbial populations. A microbial population having two or more species of microorganism is a mixed…
Prokaryotes have special arrangement of genes on chromosome. This arrangement known as operon. However, operons are not found in eukaryotes. Operon is present only in prokaryotes. There is more than one gene in an operon. Genes present in an operon…
Operons are set of genes which are present on chromosome of all prokaryotes. Lac operon is one such operon which helps E. coli to to metabolize lactose. In E. coli glucose is the primary carbon source for energy production. E…