Question

image by maria na ruiz villarreal
which does the letter a represent in the diagram?
centriole
chromosome
centromere
spindle

Explanation:

Centrioles are cylindrical structures involved in cell division. In the diagram, the orange - colored structures at the poles (where the spindle fibers originate from) are centrioles. Chromosomes are the structures with genetic material (the X - shaped structures in the middle). The centromere is the region that holds sister chromatids together (part of the chromosome). The spindle is the network of fibers (the blue lines) that help in moving chromosomes during cell division.

Answer:

centriole