A researcher conducting a study on the incidence of mutations to the MDR-1 gene in breast cancer has preliminary evidence of a link between mutated MDR-1 and early recurrence. The researcher begins a new trial using prospectively collected tissue samples to further examine the link between the genetic abnormality and disease progression. He believes that he may want to re-contact some or all of the tissue donors (subjects) if the research indicates a positive link between MDR-1 mutation and early disease recurrence. What is the best procedure for an investigator planning to re-contact study subjects who provided tumor tissue for the study?

Which effect does an increase in a country’s literacy rate have on the people who live there?

Me! will give brainliest to whoever answers correctly! arrange the events in peruvian history in chronological order using the numbers 1-6. a. simón bolívar and antonio jóse de sucre’s defeat of spanish forces ensures peru’s independence. b. alejandro toledo is the first indigenous peruvian elected president. c. spanish conquistador francisco pizarro arrives in peru and enslaves peru's indigenous people. d. túpac amaru ii is executed, and his sacrifice inspires peruvians to seek independence and equal rights for indigenous people. e. the chaví­n culture establishes settlements high in the andes. f. attacks by rebel groups threaten democratic rule. (for example, find out the dates of the events (years) and and list them below) you for your time!

Who did not believe that land could not be owned