| polyplastic |
(poly
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| polyparasitism |
(poly
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| polypathia |
(poly
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| polyploid |
(poly·ploid) (pol¢e-ploid) [poly- + haploid] 1. having more than two full sets of homologous chromosomes. There may be three (triploid), four (tetraploid), five (pentaploid), six (hexaploid), seven (heptaploid), eight (octaploid), etc. 2. an individual or cell having more than two full sets of homologous chromosomes. Polyploid organisms, especially plants, are larger than normal and have larger cells. Affected animals are often abnormal in appearance and usually infertile. Cf. aneuploid.
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| polypeptide chain |
the structural element of protein, consisting of a series of amino acid residues (peptides, qv) joined together by peptide bonds.
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