As you see here, one should always label their diagrams. It makes it easier for the viewer or science students to learn about the body parts efficiently. It should be noted here that labeling a diagram serves as useful feedback to a teacher, too, as it provides information about what students understand and what they still need to learn. In the Chromosome labeled diagram, we have a cell, nucleus, and have mentioned T, A, C, & G, on the DNA's structure. It should be noted here that a labeled diagram can be used in mathematics, science, and language arts to help the students or researchers understand the relationship among different parts of the diagram.