BIOL 1107 Study Guide - Midterm Guide: Transmembrane Protein, Keratin, Stout
Document Summary
Prokaryotes only have 1 unreplicated circular chromosome, while eukaryotes have multiple replicated linear chromosomes. The spindle fibers are what separate the dna. For prokaryotes, a plasmid acts as the mitotic spindle fibers in which it attaches to both the new and copied dna and separates the two to the other side of the cell. For eukaryotes, the spindle fibers line up the chromosomes at the equator and split them in half, bring the halves to the opposite sides of the cell. Both sets of division require new and old dna. Chromatin = dna wrapped around globular histone proteins--a dna-histone complex. Mitosis begins when chromatin condenses to form a much more compact structure, the. Nucleosomes = bead-like eukaryotic chromatin, consisting of about 200 nucleotides of dna wrapped twice around 8 histone proteins: what event(s) characterizes each of the following cell stages: go (g1, s, g2), m. (go phase or. Interphase is divided into three subphases, g1, s and g2).
