Questions asked by Kim V.

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• Why it's important to know the location of an intermediate is upstream or downstream? the concept says " "if a strain with a mutant enzyme that blocks a particular step in a linear metabolic pathway can grow when an intermediate is added to the growth.."
  
• Which of the following isn't evidence that supports the endosymbiont theory? - Mitochondria and chloroplast have exterior structures similar to bacterial cell walls - The gene expression processes in these organelles are similar to the bacterial processes