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Definition
| eukaryotic nucleic structure made of DNA & protein, prokaryotic ring of DNA |
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| protein molecule in CS of EK cells |
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| 1 of 2 strands of CS visible during MIT or MEI |
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| part of CS that holds 2 sister chromatids together during MIT |
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Definition
| makes up mitotic & interphase CS, protein complex & DNA strands loosely coiled so translation & transcription can occur |
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| pair of CS that determine sex |
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| CS have same genes & structure, pair during MEI |
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| micrograph of array of CS visible in cell during metaphase; graphical display showing an individual's CS arranged in homologous pair & order of diminishing size |
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| cell has 2 haploid sets of CS |
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Definition
| only has 1 set of unpaired CS |
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| asexual repro. of 1-celled org. 1 cell becomes 2 of same size |
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| eukaryotic process of cell division, forms 2 new nuclei, each w/= # of CS |
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Definition
| doesn't involve union of gametes, offspring of single parent is genetically identical to parent |
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| process in CD, # of CS decreases to 1/2 by 2 divisions of nuclei, results in repro. of sex cells (gametes or spores) |
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| haploid repro. cell that unites w/another to form a zygote |
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| period b/t 2 mitotic or meiotic divisions; when cell grows, copies its DNA & makes proteins |
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| division of cytoplasm; follows nuclear division by MEI or MIT |
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| condensation of CS & dissolution of nuclear envelope |
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| microtubules extend across dividing EK, helps in mov't of CS |
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| when all CS move to cell's equator |
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| nuclear membrane wraps around new set of CS |
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| precursor of new plant cell wall, formed during CD & divides cell into 2 |
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| pairing of homologous CS during MEI |
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| 4 chromatids in homologous CS that come together b/c of synapsis during MEI |
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| exchange of genetic material b/t homologous CS during MEI, may result in genetic recombo |
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| regrouping of genes in offspring; results in different genetic make up from parent |
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Definition
| random distribution of pairs of genes on different CS to gametes |
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| short-lived product of formation of gametes by MEI |
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| repro. when gametes of 2 parents unite |
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