Correct + best explanation gets brainliest which of the following describes how background research in the design of an experiment? a. it provides a final opportunity to cancel an experiment before it's too late. b. it provides information about why certain measurements are made in an experiment. c. it provides a confirmation that no else has ever done in the exact same experiment. d. it provides a good opportunity to talk to other scientists about their life's work.

B. It provides information about why certain measurements are made in an experiment

From experience, to be able to have background research helps in the design of an experiment because it would tell you what is being measured in a experiment. Without the background information, my whole class got lost on what to do until my teacher told us what we had to measure and how we could measure the experiment.

google my dude. if it doesn't show up ask me.

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."