DNA Before discussing “The Replication Of Circular DNA”, first we are going to give a short introduction to DNA. DNA or Deoxyribonucleic acid is the hereditary material present in all living organisms through which the characteristics of one generation are transmitted to the next one. It contains the genetic information …

আমাদের গল্পের জায়গায়, কার্জনহলের মেহগনি গাছের নিচে যখন বসতাম আশে পাশের গাছগুলো মুগ্ধ করতো আজো মুগ্ধ করে বলেই সেখানে বসা। সেখানে প্লাস্টারকরা বোর্ডের পাশেই মাটিতে লতানো একটা অচেনা উদ্ভিদ ছিলো। একদিন আমি আর  আমার বন্দ্ধ শামীম বসে  ছিলাম। এইদিক ঐদিক দেখতে দেখেতেই হঠাৎ সেদিকে নজর পড়লো তাই কি ধরনের উদ্ভিদ, …

(Evolution of Green Algae has three articles based on its three trends. All of these articles start and end with same paragraphs. If you want to avoid these intros, directly migrate to the point “Chlorococcine line of evolution“). Evolution of Green Algae: Vovocine Trend Evolution of Green Algae: Tetrasporine Trend …

(Hello..readers, Evolution of Green Algae has three articles based on its three trends. All of these articles start and end with same paragraphs. If you want to avoid these intros, directly migrate to the point “Tetrasporine line of evolution” which is after the second horizontal line). Evolution of Green Algae: Volvocine …

What is prion? Prion is a term first used to describe the mysterious infectious agent responsible for several neurodegenerative diseases found in mammals,including Creutzfeldt-Jakob diseases(CDJ) in humans. The word itself derives from ‘proteinaceous infectious particle’; It refers to the initially heretical hypothesis is that the infectious agent causing those diseases …

Polyploid Organism bearing the exact multiple of the basic chromosome number (x) of the species. In polyploid cells and organisms, the number of chromosome sets exceeds that of diploid. Depending on the number of chromosome sets, polyploid can be classified as triploids, tetraploids, pentaploids etc. Good to know In potato, …

Karyotype Most living organisms have chromosomes as the structural and functional units of genetic information in their cells. The number and appearance of chromosomes vary species to species. A karyotype is an organized profile of total chromosomes in a species or in an individual organism. It gives a preliminary idea …

A model organism is a nonhuman species that is used as a framework to develop and standardize the analysis which is applicable to other species. It’s an in vivo model which is extensively used to study human diseases when human experimentation would be unethical.  In studying human diseases,  model organisms …

What is GMO? A Genetically Modified Organism (GMO) is an organism whose genetic materials has been altered using genetic engineering techniques. A GMO is the result of a laboratory process where genes from the DNA of one species are extracted and artificially forced into the genes of an unrelated plant …

Lipids are a heterogeneous group of compounds that are related to fatty acids. They are usually esters of fatty acids with alcohols. Examples include fats, oils, waxes, and other substances. Fats (solid) and oils (liquid) = Glycerol (tri-hydroxy alcohol) + 3 fatty acids. Wax = Mono-hydroxyl alcohol + Fatty acid. …