Milk contained which of the following macromolecules carbohydrates protein and lipids, protein and lipids, protein, lipids

The trp operon in e.coli regulates genes that code for enzymes required for synthesis of the repressible operon. when tryptophan is not available amino acid tryptophan. the trp operon is a in the environment, the trp repressor protein activeinactiveregulated. therefore, rna polymerase can bind to the genes to begin transcription.

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Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?