| 单词 | accessory chromosome |
| 释义 | > as lemmasaccessory chromosome accessory chromosome n. Biology a chromosome that differs in form or behaviour from the usual chromosomes of a species; (in early use) esp. a sex chromosome or B chromosome. ΘΚΠ the world > life > biology > biological processes > genetic activity > genetic components > [noun] > chromosome > types of chromosome chromoplastid1885 accessory chromosome1899 chromoplast1902 X1902 heterochromosome1904 idiochromosome1905 macrochromosome1905 allosome1906 autosome1906 monosome1906 sex chromosome1906 supernumerary1907 X chromosome1911 Y chromosome1911 univalent1912 euchromosome1914 W1917 monosome1921 tetrasome1921 trisome1921 heterosome1938 isochromosome1939 trisomic1939 metacentric1945 acrocentric1949 polycentric1953 Philadelphia chromosome1961 monocentric1979 1899 C. E. McClung in Zool. Bull. 2 187 For the sake of convenience this structure will be called, provisionally, an accessory chromosome. 1902 C. E. McClung in Biol. Bull. 3 43 (title) The Accessory Chromosome—Sex Determinant? 1958 C. P. Swanson Cytol. & Cytogenetics xiii. 459 Apart from accessory chromosomes, which are generally..smaller than the usual chromosomes, microchromosomes are found throughout the plant and animal kingdom. 2002 A. J. Griffiths et al. Mod. Genetic Anal. (ed. 2) viii. 215 (caption) The starting materials are a circular accessory chromosome (vector) from a bacterium and a linear DNA molecule of interest. < as lemmas |
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