You measure the overall growth of a population of tumor cells and find it to be at a rate of 6 units per day. The rate of cell apoptosis is 4 units per day. The rate of cell division in this population of tumor cells is therefore units per day. These tumor cells are likely to be .

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.

When does dna replication(make a copy of itself)?

The image below shows a weather service map. which details best describe this map? check all that apply