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17 Cards in this Set
- Front
- Back
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in order to fit within a cell, DNA becomes more compact by
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wrapping tightly around associated proteins
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chromatids are
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joined strands of genetic material
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a protein disk that attaches two chromatids
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centromere
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which of the following NOT true between the differences of prokaryotes and eukaryotes
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eukaryotic chromosomes contain DNA while prokaryotic chromosomes contain a different form of genetic material
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chromosomes in your body
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-exist in 23 pairs
-contains thousands of genes -40% DNA 60% protein |
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diploid cell one that has
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-two homologous for each chromosome
-designated by the symbol 2n -always found in pairs |
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a spindle fiber is a specialized form of
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microtubules
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typical human cell contains 46 chromosomes after mitosis and cell division each of the two new cells from from the original cells contain
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46 chromosomes
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as a result of mitosis each of the two new cells produced from the original cells during cytokinesis
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receives an exact copy of all the chromosomes present in the original cell
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during which stage do the centromeres divide
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ananphase
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in the plant cells cytokinesis occurs when
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a new cell wall forms
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mitosis is a process by which
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a cells nucleus divides
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which of the following TRUE
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cytokinesis differs in plants and animals
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seperation of homologous occurs during
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meiosis 1
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the difference between anaphase of mitosis and anaphase 1 meiosis is
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chromatids do not serparate at the centromeres in anaphase 1
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when crossing over takes place chromosomes
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exchange corresponding segments of DNa
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the exchange of segments of DNA between two members of a pair of chromosomes
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acts as a source of variation within a species
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