While looking at bacteria under a microscope, you decide to take a break. when you return, the amount of bacteria has doubled in size. your break probably only took a. 24 hours b. 1-3 hours c. 8 hours d. 48 hours

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.

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

Ascientist wanted to formulate a pill to attack a specific type of bacteria that infects the throat. which biological component would be best to use as a model for the pill's function? bacteriocytes phagocytes complement antibodies