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Biology-Related Homework Help Genetics and Developmental Biology Topic started by: colleen on Sep 14, 2013



Title: The following table presents the effect of different media on the growth respons
Post by: colleen on Sep 14, 2013
The following table presents the effect of different media on the growth response of tryptophan mutations in Salmonella typhimurium (+ = growth, - = no growth). 

   Medium Supplemented with
   Strain   No Supplement   IGP   AA   IN   TRY
   trp-8   -   +   +   +   +
   trp-2   -   +   -   +   +
   trp-3   -   -   -   +   +
   trp-1   -   -   -   -   +

(a)  Construct the biochemical pathway for the compounds IGP, AA, IN, and TRY based on these data.
(b)  Place strains of bacteria (mutations) in the appropriate steps in the pathway.
(c)  In bacteria, it is often possible to make partial diploid strains. Assume that a diploid strain was made containing the complete genomes of the trp-2 and trp-1 strains. Would this diploid strain be able to grow on the unsupplemented medium? Explain your answer.


Title: Re: The following table presents the effect of different media on the growth respons
Post by: duddy on Sep 19, 2013
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Title: Re: The following table presents the effect of different media on the growth respons
Post by: colleen on Sep 21, 2013
Awesome!! :kitty: