Which of the Following Most Accurately Represents How Alfred H

Multiple Choice

Which of the following most accurately represents how Alfred H Sturtevant created the first chromosome map?

A) He used a microscope to view the genes
B) He used a set of microcalipers to measure the distance between the genes on the chromosome
C) He used the data he retrieved from his experimental crosses to determine the distance between the genes on the chromosome
D) All of these
E) None of these