True or False: The X chromosome was named due to its shape.

The statement that the X chromosome was named due to its shape is not accurate. The X chromosome got its name from the fact that it was the unknown factor found during early genetic studies. Researchers previously identified certain factors in cells through observing their behaviors but did not yet understand the genetic implications. The chromosome appeared as a distinct entity under a microscope, and since it was labeled as “unknown” during the investigations, it was designated as “X.”

This naming reflects a historical aspect of genetic research rather than any physical resemblance or specific historical figure. In contrast, the Y chromosome received its name in relation to being the counterpart to the X chromosome, hence the letter “Y.” Understanding this nomenclature helps clarify the complexity of chromosomes and their identification in genetic studies.