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Biology vocab ch.8

Stack #208584

QuestionAnswer
Autosome A chromosome that is not a sex chromosome
Centromere A region in the chromosome in which two sister chromatids are held together and which is the site of the attachment of the chromosome to the spindle fibers during Mitosis
Chromatid One of two identical parts of a chromosome
diploid cell that contains both chromosomes of a homologous pair
haploid Having only one chromosome of each homologous pair
histone Protein molecule that DNA wraps around during chromosome formation
homologous Chromosome One of a pair of morphologically similar chromosomes
Karyotype Picture of an individual's karyotypes
nonhistone Not a histone
Sex Chromosomes Chromosome that determines sex
Anaphase Phase of mitosis and meiosis in which the chromosomes separate
Binary Fission Asexual cell division of prokaryotes that creates identical offspring
Cell Cycle Events of cell division: includes interphase, mitosis, and cytokinesis
Cell Plate Membranes that divide newly forming plant cells following Mitosis
Centriole Structure that appears during mitosis in animal cells
Centrosome dark body containing centriole in animal cells but not in plant cells; spindle fibbers radiate from this in preparation for mitosis
Cleavage Furrow The area of the cell membrane that pinches in and eventually separates the dividing cell
Cytokinesis The division of the cytoplasm of one cell into two cells
Go phase, not GO but G-o The phase of the cell cycle in which the cell is not dividing and its DNA is not replicating
G1 Phase The first period of interphase, in which cell doubles in size
G2 Phase Final period of interphase, where cell undergoes rapid growth and prepares mitosis
Interphase period of cell growth and deverlopement that precedes eukaryotic cell nuclear division
Kinetochore Disk-shaped protein found in the centromere reguion of a chromosome and attaches the chromosomes to the mitotic spindle
Kinetochore fiber Spindle fiber that extends from the centrosome at one one pole of the cell to a chromatid during mitosis
Meiosis Process of nuclear division that reduces the number of chromosomes in a cell by half
Metaphase Second phase of mitosis during which all of the cell's chromosomes move to the cell's equator
Mitosis Eukaryotic nuclear division
Mitotic Spindle The array of spindle fiber that serve to divide the chromatids during nuclear division
M Phase Mitosis; phase of cell division in which cell nucleus divides
Polar Fiber centrosomes or somein
Prophase 1st stage of mitosis and meisosis, characterized by condensation of chromosomes
S Phase 2nd phase of interphase, in which their is replication of DNA
Spindle Fiber one of micorotubules that extend across dividing eukaryotic cell; assists in movement of chromosomes
Telophase Final stage of mitosis during which nuclear membrane forms around each set of new chromosomes
Created by: myoung15
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