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Bio 30 - Unit C

Diploma studying tool

QuestionAnswer
what relies on cell division ? growth and reproduction
Offprings produced by asexual parents are identical to the parent
What series of events maintains growth and the number of cells in the bodies of multi-cellular organisms ? Cell cycle
2 parts of the cell cycle Interphase and Division phase
Division (cell cycle) mitosis and cytokinesis
Mitosis equal distribution of nuclear contents (chromosomes) to both daughter cells
Interphase (3 stages) gap 1, synthesis, gap 2
gap 1 time of rapid growth
synthesis duplication of chromosomes (necessary for future divisions)
gap 2 another period of growth, preparation for future division
chromosomes contain DNA and proteins
Chromatin combination of DNA and proteins
centromere attaches the original chromosome to its duplicate
sister chromatid genetically identical chromosomes , that are attached
stages of mitosis prophase, metaphase, anaphase, telophase
Prophase (mitosis) first stage of mitosis, Chromosomes become visible.
Centrioles animal cell organelle, moves to opposite poles in division. attaches to spindle fibers
Spindle fibers act as guide wires, attach and move chromosomes
spindle apparatus formed by the centrioles and spindle fibers
Metaphase (mitosis) duplicated chromosomes move to the equatorial plate (center of cell)
Anaphase (mitosis) centromeres divide and sister chromatids move to opposite poles of the cell
Telophase (mitosis) Chromosomes have reached opposite poles, spindle fibers dissolve and nuclear membrane form around each set of chromosomes
cleavage furrow animal cell, cytokinesis - end of division
cell clock predestined number that cells will divide, number will always be the same
cells that divide endlessly spermatogonia and cancer cells
metastasis cancer cells break off from tumors, get into lymph fluid , and they can divide and create a tumor in another part of the body
Created by: egagnon333
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