Genetic Mapping

Step 1: Understanding Gene-Mapping Technology
Gene mapping involves determining the location of genes on a chromosome and understanding their relative distances. It was an important breakthrough in the field of genetics as it allowed researchers to understand how traits are inherited.

Step 2: Key Contributors to Gene Mapping

• Mendel: Known for his foundational work in genetics, Mendel laid the groundwork for inheritance studies but did not develop gene mapping technology.
• Tschermak: A contemporary of Mendel, who also contributed to genetics but did not directly develop gene mapping technology.
• Correns: Another geneticist who worked on inheritance patterns, but gene mapping was not his direct contribution.
• Sturtevant: Sturtevant was the scientist who first developed gene mapping technology. He used recombination frequency to map genes on chromosomes in the early 20th century.

The correct answer is (D) : Strutvent.