bio chapter 10 quiz 2

#PV

sister chromatids

the 2 identical structures that are the coiled form of the replicated DNA

centromere

the point where the sister chromatids are held together

spindle fibers

microtubules that move the chromosomes around the cell during mitosis

metaphase

chromosomes line up single file at the equator of the cell

anaphase

centromeres divide; sister chromatids separate and migrate to opposite sides of the cell

telophase

chromosomes uncoil into chromatin; nucleolus and nuclear membrane reappear; spindle fibers dissolve

cytokinesis

the division of the cytoplasm; results in 2 complete cells

apoptosis

the process of programmed cell death; a series of controlled steps leading to self-destruction of a cell; plays a key role in development

cell differentiation

the process by which cells become specialized; causes cells to become different in structure and function from the embryonic cells that produced them