Sourav Pan is the founder and sole author of Biology Notes Online. He holds a Bachelor of Science (B.Sc.) degree and an M.Sc. in Microbiology from the University of Calcutta. He creates educational resources covering microbiology, immunology, biotechnology, genetics, cell biology, botany, zoology, and other life-science subjects.
His goal is to make complex biological concepts easier to understand through well-structured, student-friendly articles based on academic textbooks, peer-reviewed research, and authoritative scientific sources. In addition to writing new content, he regularly reviews and updates articles to improve their accuracy, clarity, and educational value.
Transcription is the process by which the genetic information stored on DNA strands is transferred into an RNA-RNA strand via the polymerization process caused by enzymes known as DNA-dependent polymerases.
Mitochondria originates of the Greek word meaning’mitos’ thread and ‘chondrios’-granule. Mitochondria are also referred to as the “powerhouse of cells’ because their primary purpose is to generate energy through the process of ATP.
A Chromosome is a thread-like form found in the nucleus or nuclear region of cytoplasm. It’s made of one DNA molecule (Deoxyribonucleic acid) and proteins, which carry certain or all of the genetic materials in an organism.
The animals that are cold-blooded are those who are incapable of controlling their body’s temperature in accordance with temperatures of their environment.
Natural selection is the process that allows an organism to adapt to changing environmental conditions through the introduction of changes in the genotype of its genetic material.
The major distinction between simple and facilited diffusion is that simple diffusion is not accompanied by the involvement of the channel or carrier proteins whereas the facilitated one takes place through channels or protein carrier proteins.
Definition of Endonuclease Mechanism of Endonuclease The mechanism of endonuclease involves the cleavage of the phosphodiester bond within the polynucleotide chain. Here is an overview of the mechanism: The mechanism of endonuclease activity plays a crucial role in DNA repair processes, as it specifically targets and removes mismatched or damaged nucleotides within the DNA molecule. … Read more
Endocytosis is a cellular process by which cells internalize substances from their external environment.
Exocytosis is a type of process, in which involves the movement of materials from the inside of a cell to the exterior of the cell by the use of energy.