Avatar for Sourav Pan

Sourav Pan

Founder of Biology Notes Online, Biology & Microbiology Educator, M.Sc. in Microbiology
Expertise
Microbiology, Immunology, Cell Biology, Molecular Biology, Genetics, Biotechnology, Biochemistry, Botany, Zoology
Education
University of Calcutta
Profile Last Updated: August 10, 2026

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.

Cell Wall Synthesis Inhibitors – Mechanism, Examples

Cell Wall Synthesis Inhibitors - Mechanism, Examples

What are Cell wall synthesis inhibitors? Cell wall synthesis inhibitors encompass antibiotics like β-lactams and glycopeptides. These antibiotics play a crucial role in treating infections by targeting the bacterial cell wall, an essential structure for bacterial survival. Understanding the mechanisms and types of these inhibitors provides insight into their therapeutic applications. β-Lactam Antibiotics β-lactam antibiotics … Read more

Mosses (Bryopsida) – Morphology, Characteristics, Reproduction, Uses, Examples

Mosses (Bryopsida) - Morphology, Characteristics, Reproduction, Uses, Examples

What is Mosses (Bryopsida)? Definition of Mosses (Bryopsida) Mosses (Bryopsida): Bryopsida, or mosses, are a class of non-vascular plants comprising around 15,000 species. Characterized by jointed teeth in their spore capsules, they reproduce through spores and thrive in damp, shady environments. Mosses play crucial roles in soil formation, moisture retention, and ecological habitats. Habit and … Read more

Karyotyping – Definition, Steps, Procedure and Applications

Karyotyping - Definition, Steps, Procedure and Applications

What is Karyotyping? Karyotyping: What’s the Deal? Definition of Karyotyping Karyotyping is a diagnostic technique that examines an individual’s chromosomes to identify genetic abnormalities, structural changes, and chromosome number variations. What is a karyotype?  Karyotyping Procedure/Steps of Karyotyping Staining and banding Staining and Banding techniques used in karyotyping: Applications of Karyotyping Medical Genetics: Prenatal Diagnostics: … Read more

DNA Library – Types, Construction, Applications

DNA Library - Types, Construction, Applications

What is DNA Library (Genomic, cDNA)? Types of DNA Library There are two main types of DNA libraries: genomic libraries, and cDNA libraries. 1. Genomic Library 2. cDNA Library Genomic Library Construction Steps Genomic Library Construction Steps Creating a cDNA library begins with mRNA, which carries genetic instructions from DNA to ribosomes for protein synthesis. … Read more

Transgenic Plants – Examples, Definition, Procedure, Application

Transgenic Plants Examples, Definition, Procedure, Application

What are Transgenic Plants? Definition of Transgenic Plants Transgenic plants are genetically modified organisms in which DNA from another species is inserted into their genome through genetic engineering techniques to confer new traits, such as pest resistance or improved nutritional content. Different Methods to Create Transgenic Plant Creating transgenic plants involves various techniques to introduce … Read more

The Wobble Hypothesis – Definition, Exaplanation, Importance

The Wobble Hypothesis - Definition, Exaplanation, Importance

What is The Wobble Hypothesis? The Wobble Hypothesis, proposed by Francis Crick in 1966, provides an explanation for the degeneracy of the genetic code. Degeneracy refers to the fact that multiple codons can code for the same amino acid. According to the Wobble Hypothesis, the precise pairing between the bases of the codon and the … Read more

Homologous Chromosomes vs Sister Chromatids – Key Differences

Homologous chromosomes and sister chromatids are two different chromosome relationships found during the cell cycle. Homologous chromosomes occur as pairs in a diploid cell. One chromosome is from the maternal side and another from the paternal side. They carry the same genes at corresponding positions, but the alleles of these genes may be different. Sister … Read more

Monocarpic vs Polycarpic Plants – Key Differences

Difference between Monocarpic and Polycarpic Plants

What are Monocarpic Plants? Examples of Monocarpic Plants Here are some notable examples of monocarpic plants: What are Polycarpic Plants? Examples of Polycarpic Plants Here are some examples of polycarpic plants: Difference Between Monocarpic and Polycarpic Plants Examples: Additional Differences: Difference Chart Between Monocarpic and Polycarpic Plants Characteristic Monocarpic Plants Polycarpic Plants Flowering Produce flowers … Read more

Emulsion PCR – Principle, Procedure, Advantages, Limitations, Uses

Emulsion PCR - Principle, Procedure, Advantages, Limitations, Uses

What is Emulsion PCR? Principle of Emulsion PCR Emulsion PCR (polymerase chain reaction) is a sophisticated technique designed to amplify individual DNA templates in a high-throughput manner by partitioning the DNA into tiny water-in-oil droplets. Each droplet serves as an independent microreactor, allowing for the separate amplification of distinct DNA fragments. This method leverages the … Read more