Let’s kick off this discussion with a simple calculation about the length of DNA in a single diploid human cell. We know according to Watson and Crick model of double helix DNA, each two base pairs has a distance of 3.4 A. There are approximately 6.4 billion base pairs (bp) …

Megasporangium is the structure of a plant body that contains a female reproductive organ. It can be called an ovule.  It consists of nucellus and integument. The ovule can be formed in different sizes and shapes. Many times it changes its form during the course of its development.   Mature …

Coliform is commonly known as ” indicator organisms“, refers to a wide groups of bacteria ( about 16 species) that found throughout the environment and used to evaluate the water quality.  These organisms have a wide distribution in soil, water surface, vegetations as well as on the skin or intestinal …

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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 …

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 …

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? …

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 …

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. …

“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 …