Cell cycle

.......................– a fanlike microtubule structure that helps separate the chromatids

A cell spends 90 percent of its time in the first three phases of the cycle, which are collectively called ...............

.................– tiny structures located in the cytoplasm of animal cells that help organize the spindle

Some somatic cells, such as .................., never divide.

In the .............. phase, new DNA is synthesized when the chromosomes are replicated.

..................is the division of the cell nucleus.

.........................– the area where each pair of chromatids is joined

......................is the division of the cytoplasm.

During ..........The centrioles move to opposite sides of nucleus and help organize the spindle.

In the ...... phase, cells increase in size and synthesize new proteins and organelles.