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Section 5.2 Vocab

TermDefinition
Chromosome One long continuous thread of DNA that consists of numerous genes along with regulatory information.
Histone Protein that organizes chromosomes and around which DNA wraps.
Chromatin Loose combination of DNA and proteins that is present during interphase.
Chromatid One half of a duplicated chromosome.
Centromere Region of condensed chromosomes that looks pinched; Where spindle fibers attach during meiosis and mitosis.
Telomere Repeating nucleotide at the ends of DNA molecules that do not form genes and help prevent the loss of genes.
Prophase First phase of mitosis when chromatin condenses, the nuclear envelope breaks down, the nucleolus disappears, and the centrosomes and centrioles migrate to opposite sides of the cell.
Metaphase The spindle fibers attach to a protein structure on the centromere of each chromosome and align the chromosomes along the cell equator, around the middle o the cell.
Anaphase Sister chromatids separate from each other.
Telophase A complete set of identical chromosome is positioned at each pole of the cell.
Created by: gayhaabi9963