Sunday, August 2, 2009

Is it a,b,c,d...?

soppose a bacterial culture were mixed with recombinant plasmids containing a gene for resistance to penicillin. the bacterial culture was then treated with penicillin. which of the following statements is NOT true?





a.those bacteria that contain the plasmid will survive.





b.the penicillin will kill the bacteria that were transformed.





c.the gene for antibiotic resistance is expressed in the bacteria that will survive.





d.those bacteria that are transformed will survive.

Is it a,b,c,d...?
d
Reply:'Transformed' means the bacteria took up the plasmid which contains the penicillin resistance, so those who were transformed will survive.





B is incorrect.


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