DrVirgo Forum Hero

Topics: 1084 Posts: 3,470
| | 05/02/06 - 07:04 AM  
 
   
 
|   #1 |
6. A 50-year-old man who recently immigrated to the USA from Russia develops fever, swelling of the neck, and difficulty swallowing. His vaccination history is uncertain. Examination of the throat shows a gray membrane across the pharynx. The pathogen responsible for this infection most likely acquires its virulence through which of the following genetic events? A) Acquisition of a transposon B) Chromosomal mutation C) Conjugation D) Recombination E) Transduction D or C?? Corynebacterium diptheriae pseudomembrane, correct?
___________________ Our greatest glory is not in never falling, but in rising every time we fall.
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| r_albayunen Forum Senior

Topics: 0 Posts: 218
| | 05/02/06 - 07:57 AM  
 
   
 
|   #2 |
thats E DrVirgo remember the bacteriophages in lysogenic conversion O Salmonella toxin B otulinum Toxin E rytrogenic toxin of strep pyo D iphteria toxin!!
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| robin082006 Forum Hero

Topics: 471 Posts: 5,125
| | 05/02/06 - 11:48 AM  
 
   
 
|   #3 |
Thanks for explanation, I review them, I read them but do not understand, now I got.
___________________ The Key to Succeed is Patience.
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| DrVirgo Forum Hero

Topics: 1084 Posts: 3,470
| | 05/02/06 - 09:49 PM  
 
   
 
|   #4 |
You are right r_al. This is lysogenic conversion, so the bacteria will acquire new bacteria from a phage and not undergo lysis but will become a new phenotype. OBED... Yes... thanks for reminding me!
___________________ Our greatest glory is not in never falling, but in rising every time we fall.
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| DrVirgo Forum Hero

Topics: 1084 Posts: 3,470
| | 05/02/06 - 09:52 PM  
 
   
 
|   #5 |
O is for O Antigen of Salmonella (not toxin)...
___________________ Our greatest glory is not in never falling, but in rising every time we fall.
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| Cedrick Forum Fanatic

Topics: 320 Posts: 1,928
| | 06/25/06 - 01:37 PM  
 
   
 
|   #6 |
Chioce E Thanks
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