Rice, Oryza sativa is one of the main staple crops in the whole world especially in Asia. It provides carbohydrate and calories daily to about half of the world population. Besides, in some countries, this annual plant acts also as an economic crop and serves as a source of foreign …

Introduction Lactophenol cotton blue (LPCB) is a widely used staining agent used in laboratories to observe chitin walled organisms (e.g. Fungi). It generally gives the specimen a blue color under microscope and helps to find them easily. It is also very simple to prepare. Composition This mounting medium is composed …

What is Chromosomal Aberration? Any type of change in the structure and number of chromosomes due to certain irregularities during cell division is known as chromosomal aberration. Broadly such aberrations are divided into two major groups. Structural aberration Numerical aberration Again, structural aberrations are of 4 types. Such as: Deletion …

In the nucleosome model of chromosome, we have discussed about the fundamental organizational unit of chromosome termed as nucleosome. That article gave us a simplistic idea about how the repeated nucleosomes are arranged. The figure in the right hand side clarifies that the nucleosome model provides us with the insight …

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) …

Introduction I came across this infamous term ”Bio-terrorism” when I was watching the movie ”Inferno” last year based on the novel of Dan Brown. In the movie, a millionaire bioengineer named Bertrand Zobrist who was the main villain asked an audience in a hall referring to the problem of Barlett’s …

The Fungi is a group of organisms which are non-photosynthetic, absorbing entities with main vegetative part as filamentous. They usually grow in shady and moist places. Some fungi sometimes attract us by their beautiful colors and shapes and sometimes we try to avoid them as much as possible. Though many …

আমের বৈজ্ঞানিক নাম Mangifera indica. নামটির প্রজাতির অংশ শুনলেই কিছুটা ধারণা করা যায় এটির উৎপত্তি ভারতে।  হ্যা, আমাদের পার্শ্ববর্তী দেশ ভারতের হিমালয়ে, ইন্দো-বার্মার সীমারেখা ঘেঁষে অনেক বছর আগে আমের এই নামের যাত্রা শুরু হয়েছিল। সেসময় ভারতের পুঁথিগত ভাষা ছিল সংস্কৃত। সংস্কৃতে এই আমকে বলা হত ‘আম্র’। বর্তমানের আম ফলকে একসাথে …

Algae refers to a heteromorphic group of organisms which are capable of doing photosynthesis as they contain chlorophyll as their primary pigment and lack a sterile covering around their reproductive cells. The members are grouped together as they share some common characteristics. However, they are not necessarily closely related in …