Spindle (informal term for a type of structure in biology)

The spindle, in biological terms, is a structure made of microtubules that forms during cell division. Its main role is to organize and separate chromosomes so that each new cell receives an accurate set of genetic material. Think of it as a dynamic framework that extends across the cell's center, attaching to chromosomes and pulling them apart. This ensures that, when a cell divides, both new cells end up with the correct number of chromosomes, which is vital for proper function and stability of living organisms.