Hershey and Chase started with a virus called a blank. They used the radioactive isotope sulfur-35 to label the blank of the virus and phosphorus-32 to label the blank of the virus. They allowed the tagged virus to infect bacteria and studied the results. Hershey and Chase found that the only radioactive isotope within the bacteria was blank. This result indicated that the genetic material inserted by the virus to infect the bacteria was blank.

the answer is c.mitochondria. glad to .

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u