Detailed structure of Eukaryotic cell
What is a eukaryotic cell? Eukaryotic cells are a complex and dependent cell that contains a true bound nucleus enclosed within the nuclear membrane and... Read more
Category: Bacteriology
Detailed structure of prokaryotic cell
What is a prokaryotic cell? Prokaryotic cells are unicellular organism that lacks a defined nucleus surrounded by a complex nuclear membrane and membrane bound organelles.... Read more
Pulsed field Gel Electrophoresis (PFGE)
What is Pulsed field Gel Electrophoresis (PFGE)? Pulsed – field gel electrophoresis is a separation technique of large DNA molecules (entire genomic DNA) to produce... Read more
Bacterial Conjugation
Bacterial conjugation is the process of transfer of genetic materials from one bacterial cell to another bacterial cell by direct cell to cell contact. A... Read more
Bacterial Transformation
Bacterial transformation is the process of transfer of foreign genetic materials from the external environment through the cell membrane. It’s a horizontal form of gene... Read more
Campylobacter – Introduction, Classification, Morphology, Pathogenesis, Laboratory Diagnosis
Introduction Slender, spirally curved, non spore forming, gram negative rods Cells may form coccoid bodies when exposed to oxygen or upon prolonged culture Motile with... Read more
EAR INFECTION
Major infection of ear: i) acute otitis media ii) Chronic suppurative otits media iii) otitis externa Causative organisms: S. pyogens, H. influenzae, Moraxellacatarrhalis, M. pneumoniae,... Read more
Differences between Gram-positive bacteria and Gram-negative bacteria
Characteristics Gram positive bacteria Gram-negative bacteria Cell wall Smooth single layered cell wall Wavy double-layered cell wall Thickness of cell wall Cell wall of gram... Read more
Germ theory of disease
Germ theory defines that the invasion of microorganisms such as bacteria, viruses, fungi, or protists in our body causes certain types of diseases. These microorganisms... Read more
Collection and Transportation of Microbiological samples
BLOOD sample If using BacT/Alert bottles for bacteria or yeast, uncap the proper bottles, wipe the tops with alcohol and allow them to dry. If... Read more