单词 | pseudotetraploid |
释义 | > as lemmaspseudotetraploid pseudotetraploid n. and adj. Brit. /ˌs(j)uːdə(ʊ)ˈtɛtrəplɔɪd/ , U.S. /ˌsudoʊˈtɛtrəˌplɔɪd/ Genetics (a) n.an organism having a chromosome complement which differs from the normal tetraploid complement in constitution but not in number; (b) adj. designating an organism or species having such f complement.ΘΚΠ the world > life > biology > biological processes > genetic activity > genetic components > [noun] > chromosome > ploidy > individual haploid1908 tetraploid1914 haplont1918 hexaploid1921 pentaploid1921 pseudotetraploid1923 octoploid1926 triploid1927 allopolyploid1928 autopolyploid1928 polyploid1928 hyperdiploid1929 allotetraploid1930 autotetraploid1930 hyperploid1930 hypoploid1930 autoploid1932 polysomic1933 mixoploid1939 monoploid1944 amphiploid1945 merozygote1956 merodiploid1964 1923 Bot. Gaz. 76 330 Of two plants from our cultures, each of which had a total of 48 chromosomes in their somatic cells.., one appears to have been a chromosomal mutant of the type (4n + 1 − 1) and the other a mutant of the type (4n + 1 + 1 − 1 − 1). Such forms obviously cannot properly be called 4n or tetraploid. They..may be classified as modified tetraploids, or at most as ‘pseudotetraploids’. 1957 R. A. Beatty Parthenogenesis & Polyploidy in Mammalian Devel. vi. 94 If, for example, all chromosomes fragmented into two, then a diploid organism would be transformed into a ‘pseudotetraploid’, with twice the normal chromosome number, but still with the same amount of chromosomal material per cell. 1997 Gene 194 215 With Xenopus laevis being a pseudotetraploid species, each monomer is encoded by two genes. < as lemmas |
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