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tetraploid

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1
tetraploid
tetraploid, a. (and n.) Biol. (ˈtɛtrəplɔɪd) [f. tetra- + -ploid.] (Made up of somatic cells) containing the diploid chromosome complement twice over. Also as n., a tetraploid organism.1914 Proc. R. Soc. B. LXXXVII. 484 In the tetraploid giants the chromosomes are 2x(24) in the gametic and..4x(48) in... Oxford English Dictionary
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Tetraploid complementation assay
The resulting tetraploid cell will continue to divide, and all daughter cells will also be tetraploid. In the tetraploid complementation assay, one now combines such a tetraploid embryo (either at the morula or blastocyst stage) with normal diploid embryonic wikipedia.org
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Method for producing viable tetraploid oysters - Google Patents
CN102573453B CN201080046057.5A CN201080046057A CN102573453B CN 102573453 B CN102573453 B CN 102573453B CN 201080046057 A CN201080046057 A CN 201080046057A CN 102573453 B CN102573453 B CN 102573453B Authority CN China Prior art keywords fertilized egg oyster polar body dmap dimethylaminopurine Prior art date 2009-08-14 Legal status (The legal status is an assumption and is not a legal conclusion.
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allotetraploid
allotetraploid, a. and n. Biol. (ˌæləʊˈtɛtrəplɔɪd) [f. allo- 2 + tetraploid.] = amphidiploid a. and n.1930 W. J. C. Lawrence in Genetica XII. 272 Hybrid tetraploid (allo-tetraploid). Ibid. 277 The most probable origin of an allotetraploid would seem to be hybridisation of two self-incompatible diplo... Oxford English Dictionary
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Solanum brevicaule
It is related to the potato, but unlike the potato which is tetraploid, it has several levels of ploidy: diploid, tetraploid, and hexaploid. wikipedia.org
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autotetraploid
autotetraploid Biol. (ˌɔːtəʊˈtɛtrəplɔɪd) [f. auto-1 + tetraploid.] A tetraploid having four sets of chromosomes produced by doubling the chromosome number of a single diploid species. Hence ˌautoˈtetraploidy, the condition or occurrence of such a tetraploid.1930 J. B. S. Haldane in Jrnl. Genetics XX... Oxford English Dictionary
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Asplenium septentrionale
Three subspecies exist, corresponding to a tetraploid and a diploid cytotype and their triploid hybrid. The tetraploid subspecies is believed to have arisen from the diploid subspecies by autopolyploidy. wikipedia.org
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Finding specific genotype occurrences given allele frequency So let's say I have a tetraploid species and I have 4 possible alleles for a particular locus. I have found that I can have 35 total possible genotypes and ...
Under Hardy-Weinberg conditions, the frequency of the genotype `abcd` (in this particular order) is simply $F_a \cdot F_b \cdot F_c \cdot F_d = 0.24\%$. If we don't consider the order, then we must ultiply the previous probability by 24. There are indeed 24 (=4*3*2*1) ways you can get this particula...
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Asplenium trichomanes
Tetraploid. Asplenium trichomanes subsp. coriaceifolium (syn. Asplenium azomanes): Majorca, Spain, Morocco. Tetraploid. Tetraploid (hastatum × quadrivalens). Asplenium trichomanes nothosubsp. moravicum. Tetraploid (hastatum × pachyrachis). wikipedia.org
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Polypodium appalachianum
Since the triploid specimens bore abortive spores, it was apparently the hybrid between the diploid and tetraploid groups. The tetraploid of hybrid derivation tolerates warmer climates than either parent. wikipedia.org
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Hordeum brachyantherum
The diploid cytotype occurs only in California, throughout the state, while everywhere else plants are tetraploid. The diploid mainly grow in California, the tetraploid grow widely over the world. Polyploidy is very common in plants. wikipedia.org
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Number and chromosomal position of rDNA sites in triploid and ...
Like in the triploids, various numbers of 45S rDNA sites (7-9) were found in tetraploid plants studied ( Table 2 ). The presence or absence of ribosomal 45S DNA sites involves Lp chromosomes 1 or ...
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Hedlundia hybrida
Taxonomy It is a tetraploid species of hybrid origin between the European rowan (Sorbus aucuparia) and the Swedish whitebeam (Scandosorbus intermedia), the latter being a tetraploid triple hybrid between S. aucuparia, the wild service tree (Torminalis glaberrima), and the common whitebeam (Aria edulis wikipedia.org
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Pellaea glabella
P. glabella is known to exist in two cryptic species, one diploid and one tetraploid. The diploid reproduces sexually, while the tetraploid is normally apogamous. wikipedia.org
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Triangle of U
Woo made synthetic hybrids between the diploid and tetraploid species and examined how the chromosomes paired in the resulting triploids. This interspecific breeding allowed for the creation of three new species of tetraploid Brassica. wikipedia.org
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