Colony Appearances of Bacteria are directly asked MCQs in NEET PG and medical school exams.
Also, knowledge of the colony or culture appearance will help in solving clinical vignettes in microbiology.
These colony appearnces can also be asked as Image based questions.
This table enlists all the commonly asked Bacterial colony appearances in Microbiology.
|SR NO.||Colony appearance in culture||Organism|
|1||Bamboo stick; |
inverted fir tree appearance
|2||Thumb print appearance, |
aluminium paint appearance
|3||School of Red Fish||Haemophilus ducreyi|
|6||Fried egg colony||Neisseria meningitidis|
|7||Draughtsman (concentric rings) appearnce||Pneumococcus|
|8||Swarming growth(Fishy , seminal smell)||Proteus|
|9||Oil paint appearance||Staphylococcus|
|10||Stalatite growth in ghee broth||Yersinia pestis|
|11||Daisy head colony||Corynebacteria diphtheriae (gravis)|
|12||Frog’s egg colony||Corynebacteria diphtheriae (intermedius)|
|13||Poached egg colony||Corynebacteria diphtheriae (mitis)|
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