Which hypothetical genotype is for sure an E. coli merozygote:
:gal(+).
arg(-) arg(+).
bio(+) arg(-).
his(+)/arg(-).
arg(-) bio(+)/arg(+) bio(-).
arg(-)/bio(+) arg(+)/bio(-).
arg(-) bio(+) arg(+) bio(-).
Which hypothetical genotype is for sure an E. coli merozygote:
:gal(+).
arg(-) arg(+).
bio(+) arg(-).
his(+)/arg(-).
arg(-) bio(+)/arg(+) bio(-).
arg(-)/bio(+) arg(+)/bio(-).
arg(-) bio(+) arg(+) bio(-).
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**Please see following image for lab experiment information, then help with the following question**
http://tinypic.com/r/10sdquc/9
The genotype for the F- strain (CSH125) that you will be using is StrrLeu-His-Arg-Ade-Trp-TetS. If you wanted to grow this strain on an agar plate, which of the following nutrients must you include? (ie, which are essential for survival?) *MORE THAN 1 MAY APPLY*
Streptomycin (Str) | ||
Leucine | ||
Adenine | ||
Histidine | ||
Arginine | ||
Tryptophan | ||
Tetracycline (Tet) | ||
None of these are essential |
So from the lab manual I thought it would be all but STR since HFR is sensetive to it, but I'm not sure. Can someone explain how they can answer this?