December, 2019

• 26 December

  Disaccharides: Bonding of Two Simple Sugars

  

  A disaccharide, also called double sugar, is the sugar formed when two monosaccharides (simple sugars) are joined by a glycosidic linkage. Like monosaccharides, disaccharides are soluble in water. Three common examples are sucrose, lactose, and maltose. Disaccharides are one of the four chemical groupings of carbohydrates (monosaccharides, disaccharides, oligosaccharides, and polysaccharides). The most common …

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• 26 December

  Protein: Discovery, Characteristics, and Structures

  

  The word protein refers to a type of molecule in food that can be broken down into amino acids. They are biochemical compounds consisting of one or more polypeptides typically folded into a globular or fibrous form, facilitating a biological function. Protein accounts on average about 1/4th to 1/3rd of …

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• 26 December

  Photosynthesis: Introduction & Requirements

  

  Photosynthesis is a chemical reaction that takes place inside a plant, producing sugar type food for the plant to survive. Carbon dioxide, water and light are all needed for photosynthesis to take place. It happens in the leaves of a plant and the other green portions as well. Photosynthesis is a …

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• 13 December

  How You Can Save Money and the Environment by Making Simple Changes to Your Home

  Did you know that the average American family spends almost $2,000 a year on energy bills? That’s a lot of money! In this blog post, we will discuss some simple ways that you can save money and the environment by making changes to your home. We will cover everything from …

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November, 2019

• 1 November

  Transposable Genetic Elements

  

  Transposons were first discovered in corn (maize) during the 1940s and ’50s by American scientist Barbara McClintock, whose work won her the Nobel Prize for Physiology or Medicine in 1983. The colourful pattern on maize ears have an important scientific significance. Modern research have shown that the stripes and spots …

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October, 2019

• 18 October

  Cytotaxonomy: Study of Chromosome Behaviour

  

  Chromosome behaviour is an important factor that determine the pattern of variation and taxonomic distinctness. Pairing behavior and subsequent separation of chromosome occurs at meiosis. In reporting results of pairing studies, univalents are represented by Is, bivalents by IIs, etc. Some taxonomic information can be gained from the study of …

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• 17 October

  Cytotaxonomy: Study of Chromosome Structure

  

  Study of chromosome structure is very important in cytotaxonomic studies. It includes chromosome size, shape and position of centromere (i.e. arm-length ratio of each chromosome in the genome) Chromosomal size and shape are also important as taxonomic criteria in taxonomy. For examples, The chromosomal ratio if Mediola and Trillium of …

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• 16 October

  DNA Replication in Eukaryotes: Linear Replication

  

  DNA replication in eukaryotes is a complex and unique process involving many enzymes and thousands of ORI at a single time. Unlike the prokaryotic DNA, it involves a linear mode of replication. Why does linear DNA replication involve  multiple origins at a time? The large linear chromosomes in eukaryotic cell …

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• 16 October

  Replication in Circular DNA: Theta Model

  

  Following Meselson and Stahl’s work, investigators confirmed that other organisms also use semiconservative replication. There are, however, several different ways that semiconservative replication can take place, differing principally in the nature of the template DNA—whether it is linear or circular—and in the number of replication forks. Replicon and Origin of …

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• 15 October

  Chromosome Number: A Great Tool in Taxonomic Studies

  

  Taxonomy – is the branch of biology that deals with identification, nomenclature and classification of an object. Cytology – is the branch of biology that deals with origin, structure and function of cell. So Cytotaxonomy presumably means the application of cytological data to taxonomy. More precisely we can say Cytotaxonomy …

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