March, 2019

• 3 March

  The Microsporangium & the Male Gametophyte

  

  Microsporangium: The sporangium that is connected with the production of microspores (pollen grains) eventually development of male gametophyte is known as microsporangium. Microsporangia are produced on stamen where each stamen has a bilobed anther (each lobe has two microsporangia), connective and anther filament. When anther produces four elongated microsporangia, the …

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February, 2019

• 25 February

  Programmed Cell Death

  

  The acronym of PCD is Programmed Cell Death. The death of a cell in any form, mediated by an intracellular program is called programmed cell death. PCD is carried out in a biological process, which gives advantage during an organism’s life cycle. History The concept of PCD was used by …

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• 23 February

  ভাইরাস অন্য কোন জীবিত কোষ ছাড়া বংশবৃদ্ধি করতে পারেনা। কিন্তু কেন?

  

  ভাইরাস কোন বাহকের দেহ ছাড়া বাঁচতে পারলেও মৃতের মত আচরণ করে এবং বংশবৃদ্ধি করতে পারেনা। এই তথ্যটা আমরা যখন থেকে ভাইরাসের বৈশিষ্ট্য পড়ে আসছি সেদিন থেকেই জানি। সবাই জানি। কিন্তু কেন এমন হয়? আচ্ছা T2 bacteriophage ভাইরাসের নাম তো শুনেছি সবাই। এই ভাইরাস বংশবৃদ্ধির জন্য ব্যাকটেরিয়ার দেহ বেছে নেয় কেন? …

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• 21 February

  Bionic plant: Detector of Deadly Landmines

  

  Introduction We all heard the term “Plant”. Whenever this term arises the first view that comes to our mind is a substance that stands for  providing  foods, shelter,  shade and basic things which are must for our existence on earth.  What if the plants could tell itself whether there is …

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• 20 February

  Red Sea: A Wonder of Nature

  

  Is really red Colored sea exist? Where it is? Yes, the Red sea exists and it is one of the wonders of nature. The color of the sea is actually an intense turquoise. It is situated in between Africa and Asia and is a salt intel of the Indian Ocean. …

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• 18 February

  Dendrochronology: An Age Teller of Trees

  

  “Dendrochonology”- a word derived from three ancient Greek words, which are: dendron,khronos and logia,stands for the science of calculating a tree’s age by it’s rings.The three Greek words :dendron,khronos and logia stands respectively for ‘tree’,’time’ and ‘the study of’. Short history of Dendrochronology: Greek botanist Theophrastus first mentioned that the …

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• 16 February

  Bioluminescence: The Secret of Glow in The Dark Sea

  

  It’s dark all around and you are walking by the sea with a sparkling blue wave touching your feet .isn’t it so much mesmeric ? As much The moment  is fascinating ,the reason behind this beautiful glow is much more overwhelming. This is a beautiful natural phenomenon caused by life …

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• 13 February

  অপ্রত্যাশিত অতিথি

  

  মেঘ না থাকলে আকাশে অনেক তারকা থাকতো আজ রাতে। বিরতি দিয়ে দিয়ে মেঘ ডাকছে সাথে বিদ্যুত চমকানি। তখন গভীর রাত্রি নিস্তব্ধ। গাছের ডালে আধার মিশে আছে। সবাই মিলে ভুতুড়ে পরিবেশ। কটা বাজে চেইন ওয়ালা হাতঘড়ি টায় দেখার চেষ্টা করল সাদাত। বিদ্যুত চমকানির আলোতে ঘন্টার কাটাটার অবস্থান পরিদৃশ্যমান হলো। ঘন্টার কাটা …

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• 12 February

  The Discovery Of DNA Double Helix Structure : Watson & Crick’s Model

  

  DNA or Deoxyribonucleic Acid is the hereditary material present in all living organisms through which genetic information of one generation is transferred to the next generation. Simply DNA is the structural & functional unit of heredity. DNA double helix is probably the most iconic of all biological molecules. Early Discovery  …

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• 12 February

  Bonsai : An Art Of Miniaturizing Trees

  

  Bonsai is a Japanese art. This term bonsai may be used to refer the art of miniaturizing trees but Usually it is more than an art form. The word “Bon-sai” is a Japanese word which, means “planted in a container”. This art form is derived from an ancient Chinese horticultural …

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