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Chromosomes
Structures within cells that contain genetic information in the form of DNA, organized with proteins to form genes.
Centromere
The region of a chromosome where the two sister chromatids are joined together, playing a crucial role in chromosome movement during cell division.
Chromatids
Each of the two thread-like strands into which a chromosome divides longitudinally during cell division. Each contains a double helix of DNA.
Nuclear Envelope
Double membrane that surrounds the nucleus in eukaryotic cells and is connected to the endoplasmic reticulum; has pores that allow substances to pass between the nucleus and the cytoplasm.
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