What is fasta sequence? Fasta is a format used to represent nucleotide sequences or protein/peptide sequences. In the fasta format, the sequences are represented with their single letter code. E.g., for nucleotides A, T, G, C, U For proteins: A, M, D, etc. The fasta sequence of any nucleotide or peptide begins with a single […]
Author: saurav bhatt
Quiz series: 2 Topic Cellular respiration
Quiz series (Cellular respiration) Quiz series (Cellular respiration) Next Prev
Quiz series: 1 Topic Prokaryotes vs. Eukaryotes
Quiz series (Prokaryotes vs. eukaryotes) Quiz series (Prokaryotes vs. eukaryotes) Next Prev
BACTERIAL GROWTH
Bacterial growth is an increase in the cell in cell mass and cell number. Bacterial Growth Curve: under favorable conditions bacterial population doubles at regular intervals. When a fresh medium is inoculated with cells and the bacterial population growth is monitored over some time, plotting data between growth and time leads to a typical bacterial […]
DNA replication
As we all know every new cell is formed from pre-existing cells. Even a new cell gets its DNA from preexisting cells. In order to fulfill the requirement of DNA for the new cell, DNA must be gone under a process, and multiply this process is known as DNA replication. We all know that DNA […]
Central Dogma of Molecular Biology
The central dogma is the flow of information (DNA—RNA–Protein). The process of central dogma explains how the DNA is converted into a functional product. It was first proposed by Francis Crick (1957) and published (1958). Central Dogma also confirms that our DNA contains all the information that is required to make proteins. A gene is […]
PLASMIDS
The plasmid is the extrachromosomal DNA that can independently replicate. Most commonly plasmids are found in bacteria as double-stranded circular DNA. Sometime plasmid can be found in multicellular organisms. Plasmid classification: Conjugative and Non-conjugative Plasmid Conjugative plasmids are characterized by the ability to promote sexual conjugation between bacterial cells. Non-conjugative plasmid can’t make sexual conjugation. […]
Introduction to biomolecules
Biomolecules are the biochemical molecule present in organisms that are essential in different biological processes. E.g., carbohydrate, fatty acids | cell division, replication Biomolecules include macromolecules such as lipids and carbohydrates, protein. Biomolecules are generally endogenous and exogenous. Endogenous: produced inside the organism. Exogenous: need to be taken such as vitamins. Most of the biomolecules […]
Gram staining
Gram staining is a method used to differentiate two groups of bacteria. Based on the cell wall. Developed by Hans Christian Gram in the 19th This method is used to identify gram +ve gram –ve After performing staining the Gram-positive bacterium stain violet and Gram-negative bacterium stain pink. This technique of staining can’t define bacteria, […]
Vaccine
A vaccine is a biological preparation that provides active acquired immunity for a disease. Typically contains an agent that resembles a disease-causing micro-organism. Often made from weakening or killed form of microbes or surface protein of microbe. The biological agent stimulates the immune system of our body, it recognizes the agent as a threat. Our […]