单词 | telomere |
释义 | > as lemmastelomere telomere n. Brit. /ˈtɛlə(ʊ)mɪə/ , /ˈtiːlə(ʊ)mɪə/ , U.S. /ˈtɛləˌmɪ(ə)r/ , /ˈtiləˌmɪ(ə)r/ Cytology the compound structure found at the end of a chromosome in eukaryotes, having only one spindle pole.ΘΚΠ the world > life > biology > biological processes > genetic activity > genetic components > [noun] > chromosome > spindle or spindle fibre spindle1878 spindle fibre1878 mitosome1895 mantle fibre1896 monaster1901 cleavage-spindle1912 telomere1940 1940 H. J. Muller in Jrnl. Genetics XL. 2 The reconstructed chromosome cannot continue to be transported..unless it happens to be monocentric and—in Drosophila at least—ditelic, one centromere and two telomeres being necessary and permanent organelles. 1960 L. Picken Organization of Cells vii. 261 Within the nucleus the chromosomes present their telomeres—‘centromeres’ connected to the chromosomes by terminal filaments—to the aspect of the nuclear membrane nearest to the spindle. 1983 Nature 13 Jan. 112/1 Telomeres are very stable as free ends, whereas ends of [DNA] molecules broken in vivo tend to stick together irreversibly. < as lemmas |
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