obtained for bacterial culture-and strcptococcus thenemaniag wob obaned. DNA came from sinculured and undefected str ains of S. picumoniae that had colanimed the pae ents throas ut one time or wother develop while persisting witien a host. B. Because she is a baby, she has low irnmanity? D. The strans with which she wiw infected were tigging velent die 10 horgontal mene hamifer obtained for bacterial culture, and Streptococcus pnecumoniac was obtalned. Afthough all the infections were resolved with antibiotics scientists gained ifright into pathogen erolution by seeing how ihe isatues cambared Each isolate was first analyzed for seven genes that can indicate strain variablity, a jrocess caliedmatbiocus iequence fypive (Mist) The iab found two Mtst hat compared, four different genotypic strains were identilied, all af which ewblyesf at d residt of 16 dissind reconthination everes betwoen maifk Curiously, the technicians noticed that some recombined sequences did not yeem to come from either of the two primary contrctrgat ma, sapecared ihat ihis rrw . DNA came from uncultured and undetected strains of s. ancumonae that fad colonaed the patents tnreat at one time or aneter. Horizontal gene transfers (transformation) between the undetected and detected isotates agoear to have groduced the new recombined strats of 5 pnewingia the changing their surface antigens, possibly explaining the patients recurring infeceons: devetop while persisting within a host. Based on the case description abowe. which of the following best exploins the pibents recurrife streptecuccus aneamaniacear inlectians? A. The strains with which she was infected were antitiotic resistant due to horizontal gene tragsier. B. Because she is a baby, she has low immunity. C. The strains with which she wis infected varied in antegen production due to borizontal gene uarsten. D. The strains with which she was infected were highly virulent due to harizental gene trarofer..

1. obtained for bacterial culture-and strcptococcus thenemaniag wob obaned. DNA came from
sinculured and undefected str ains of S. picumoniae that had colanimed the pae ents throas ut one
time or wother develop while persisting witien a host. B. Because she is a baby, she has low
irnmanity? D. The strans with which she wiw infected were tigging velent die 10 horgontal mene
hamifer obtained for bacterial culture, and Streptococcus pnecumoniac was obtalned. Afthough
all the infections were resolved with antibiotics scientists gained ifright into pathogen erolution
by seeing how ihe isatues cambared Each isolate was first analyzed for seven genes that can
indicate strain variablity, a jrocess caliedmatbiocus iequence fypive (Mist) The iab found two
Mtst hat compared, four different genotypic strains were identilied, all af which ewblyesf at d
residt of 16 dissind reconthination everes betwoen maifk Curiously, the technicians noticed that
some recombined sequences did not yeem to come from either of the two primary contrctrgat
ma, sapecared ihat ihis rrw . DNA came from uncultured and undetected strains of s. ancumonae
that fad colonaed the patents tnreat at one time or aneter. Horizontal gene transfers
(transformation) between the undetected and detected isotates agoear to have groduced the new
recombined strats of 5 pnewingia the changing their surface antigens, possibly explaining the
patients recurring infeceons: devetop while persisting within a host. Based on the case
description abowe. which of the following best exploins the pibents recurrife streptecuccus
aneamaniacear inlectians? A. The strains with which she was infected were antitiotic resistant
due to horizontal gene tragsier. B. Because she is a baby, she has low immunity. C. The strains
with which she wis infected varied in antegen production due to borizontal gene uarsten. D. The
strains with which she was infected were highly virulent due to harizental gene trarofer.