To increase the proportion of auxotrophic mutants in a population of bacteria,one may use
A) direct selection.
B) replica plating.
C) penicillin enrichment.
D) individual transfer.
Correct Answer:
Verified
Q22: Indirect selection
A)is necessary to isolate auxotrophic mutants.
B)uses
Q23: The transfer of vancomycin resistance from Enterococcus
Q25: The F plasmid carries the information for
A)antibiotic
Q26: Direct selection involves inoculating cells onto growth
Q28: A quick microbiological test for potential carcinogens
Q29: Replica plating
A)is useful for direct selection.
B)is useful
Q30: A clever technique that streamlines the identification
Q31: Gene transfer that requires cell-to-cell contact is
A)transformation.
B)competency.
C)conjugation.
D)functional
Q32: Insertion sequences
A)are the simplest type of transposon.
B)code
Q40: In conjugation the donor cell is recognized
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