is a mass of genetic material composed of DNA and proteins

_____ is the protein that our DNA wraps around to make chromosomes.

is one-half of two identical copies of a replicated chromosome.

is a region on a chromosome that joins two sister chromatids.

During _____, one cell divides into two genetically identical cells.

During mitosis the________ make microtubules or spindles that pulls and separates and divides chromosomes so that each new cell has a sister or identical chromosome.

having a nucleus

having no true nucleus

Mitosis is________

essential for growth and repair of cells.

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