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22 Cards in this Set

  • Front
  • Back
chromosome
rod shaped structures made of dna and protiens
histone
the dna in eukaryotic cells wraped tightly around protiens
chromatid
one of the 2 strands of chromosomes that become visible during meiosis and mitosis.
centromere
the region of the chromosome that holds 2 sister chromatids together during mitosis.
chromatin
less tightly coiled DNA-protien
sex chromosomes
chromosomes that determine the sex of the organism
autosomes
any chromosome that is not a sex chromosome
homologous chromosomes
2 copies of each autosome
karyotype
a micrograph of the array of chromosomes visible in a cell during metaphase
diploid
cells that have 2 sets of chromosomes
haploid
cells that have only 1 set of chromosomes
binary fission
the division of prokaryotic cell into two offspring cells.
mitosis
in eukaryotic cells, a process of cell division that forms 2 new nuclei each of which has the same number of chromosomes.
Asexual reproduction
the production of offspring from one parent
meiosis
process in cell division during which the nuber of chromosomes decreases to half the original number by two diviions of the nucleus
gametes
haploid reproductive cells
interphase
time between cell division
cytokinesis
the division of the cells cytoplasm
prophase
first stage of mitosis and meiosis in cell division
spindle fibers
microtubules radiate from the centrosomes in preparation for metaphase
metaphase
second phase of mitosis
anaphase
phase in mitosis and meiosis in which the chromosomes separate