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