We have learned that world can be divided into living and non living. And the branch of Science that deals with the study of living organisms is called as Biology. But do you know what makes you and me alive? What makes the spider, lizard, dog and tree etc alive? Or what makes table, rock, […]
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PCR – Polymerase Chain Reaction is one of the routine laboratory technique. It is used to make copies of desired DNA, just like photocopier machine that makes copies of desired document. Desired DNA could be a gene or segment of DNA on which the experimenter or scientist is working. The motive of using PCR is
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Yogurt is part of our diet from ancient time. It is been produced and consumed from thousand of years. It is obtained from milk. The lactose sugar of milk is fermented by Lactobacillus delbrueckii subsp. bulgaricus and convert it to produce lactic acid, forming yogurt and tastes sour. There are many other lactose fermenting bacteria
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Introduction Winogradsky’s column is used to study cross section of a natural environment in the laboratory. Sergei Winogradsky invented the column in the 1880s. Various ecosystems such as sewage, pond water, soil can be represented in column. It is also used to isolate various photosynthetic bacteria such as purple and green photosynthetic bacteria along with
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Are you searching for Biotechnology job for freshers? Following article deals with What Biotech Companies expect from Freshers/Young Graduates. If you are from Life Sciences and do not wish to go into Academia and want to enter the industry, there are a few things you might want to pay attention to before applying for a
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Stem cells are the progenitor cells that further differentiate into different types of cells. They are called the foundation for forming tissue, organs and body. The stem cells maintain their population and renew themselves by cell division. There are different types of stem cells based on the ability to form a range of differentiated cells.
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History of Vaccines – Immunology is the branch of life Science that deals with the study of immune system of living organisms. Recovering of people from diseases led the foundation of this branch. Our ancestors had observed that people recovered from diseases had become resistant to that particular disease. The attempts of inducing immunity were
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Bacteria belongs to prokaryotes and hence it lacks nucleus and membrane bound organelle. But it has sufficient organelles that maintains and regulated important physiological, biochemical and molecular process. Invention of Electron microscope allowed us to explore the structure of bacteria. The bacteria has cell envelop (capsule, cell wall and cell membrane) envelop, nucleoid (DNA), ribosomes,
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Archaebacteria are fascinating microbes and show diverse characteristics. They are unicellular and do not have nucleus and hence scientist thought to categorize them in prokaryotes. When further research was conducted the scientist found that they have few similarities to Eukaryotes. This created a puzzle in the field of classification. To solve the puzzle, the archaea
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Endospore is the resistant form of bacteria which is very difficult to kill. Sporulation: Sporulation is a spore forming process in bacteria. Spores are metabolically inactive and resistant form of bacteria. The spore becomes resistant to chemical, heat, dehydration and radiation. The spores do not multiply. The bacteria with the ability of undergoing sporulation are
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