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Kaplan Qbank USMLE



Author10 Posts
  #1

a bacterium harboring a 15,000 base pair {bp} plasmid that encodes resistance to tetracycline and ampicillin segregates mutants that lose
resistance to either drug
Each independet mutant plasmid appears in size by approximately 5200bp
Which molecular event best explains tese findings ?

a.-formation of plasmid concatemers
b.-formation of pyrimidine dimers
c.-homologous recombination
d.-insertion of a transposon
e.-slip stranded DNA replication errors

shocked

  #2

E????

  #3

confused

  #4

Help on this oneshocked

  #5

By debate of it and help
from ciberfriends

Chioce Csticking out tongue

  #6

c

  #7

can someone please explain this to me? thanks.

  #8

The note sets found in Score95.com USMLE STEP 1 review progam answer this question perfectly. I wanted to post the note set in this forum, but I guess it is against forum rules to distribute copyrighted material.

  #9

How about D?

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Traveler, there are no roads. Roads are made by walking.

  #10

i guess its C..







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