Science

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Bio
Laurel PARKISON
Flashcards by Laurel PARKISON, updated more than 1 year ago
Laurel PARKISON
Created by Laurel PARKISON over 1 year ago
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Resource summary

Question Answer
Interphase 1 DNA replicated, forming duplicate chromosomes
Prophase 1 • Nuclear envelope and nucleolus disappear • Spindle fibers form and aach to centromere • Synapsis • Homologous Pairing • Tetrads • Crossing over may occur
Metaphase 1 Pulled to the middle of the cell by spindles • Law of Independent Assortment
Anaphase 1 • Tetrad is pulled apart • Law of Segregaon
Telophase 1 • Spindle fibers broken down • Nuclear envelope and nucleolus rebuilt • Chromosomes relax into chroman • 2 new cells that do not contain idencal genec info.
Interphase 11 Chromosomes DO NOT replicate
Prophase II Chromosomes form an X and spindles connect to the centromere • Nuclear envelope and nucleolus disappear
Metaphase II Chromosomes pulled to center
Anaphase II • Chromosomes separate at the centromere using spindles. • Each idencal chromosome moves to a new cell
Telophase II • Spindle fibers broken down • Nuclear envelope and nucleolus rebuilt • Chromosomes relax into chroman • 4 cells with half as many chromosomes (haploid)
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