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Microbiology
Bacterial genetics and gram positive bacteria
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Regarding acquiring of new genetic materials, which of the following are unmatched together?
1 punkt
Transformation _uptake by the bacterium of naked DNA
Conjugation _ commonest process of sexual reproductions in bacteria
Artificial transformation _uptake DNA from the environment
Transduction _movement of DNA between bacteria by viruses
Odznacz
Regarding your study of plasmid, which of the following isn't correct?
1 punkt
Plasmid is small DNA molecule
They are most commonly found in bacteria
Plasmid can replicate not independently
Plasmid carry antibiotic resistance gene
Odznacz
The Gram stain from a skin pustule showed gram positive cocci in clusters. and was catalase positive. What is the most likely microorganism?
1 punkt
Staphylococcus aureus
Streptococcus pyogenes
Corynebactrium
Streptococcus pneumonia
Odznacz
Which of these statements are unmatched together?
1 punkt
Staphylococci _ common inhabitant of the skin
Streptococci _ sensitive to drying and heat
S. Pyogenes _ B hemolytic
S. Pneumoniae _ complete hemolysis
Odznacz
Regarding gram positive bacilli, which of the following isn't correct?
1 punkt
Bacillus cereus _ no treatment
Clostridium perfringens _ major cause of diarrhea
Clostridium difficile _ normal flora colon
Clostridium tetani _ causes lockjaw
Odznacz
Regarding generalized transduction, all of these phage are related to their phenotype except?
1 punkt
T12 _ scarlet fever
Corynephage beta _ cholera
Lambda phage _ hemorrhagic diarrhea
Clostridial phage _ botulism
Odznacz
All of the following is correct about conjugation except
1 punkt
F+ strain known as recipient cell
F- strain lacking the fertility factor
F+ strain always bears sex pili
Genetic material is transferred from donor cell to female cell
Odznacz
All of the following is correct except one?
1 punkt
Clostridium botulinum cause flaccid paralysis
Listeria monocytogenes is found in soil
Corynebactrium diphtheria cause pseudomembrane
Mycobacterium is gram positive regular bacilli
Odznacz
A patient with suspected infectious endocarditis has a fever of 38.6°C (101.5°F). Blood culture shows non-hemolytic, . The organism was Gram positive, catalase positive and coagulase negative. What is the MOST LIKELY organism?
1 punkt
Streptococcus viridans
Streptococcus pyogenes
Stapylococcus epidermidis
Staphylococcus aureus
Odznacz
لماذا نحن هنا؟
1 punkt
سؤال يراودني
بون بون كوكبنا
سؤالٌ صعبّ
انتي الامان
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