Definition of polyploid in English:

polyploid

adjective ˈpɒlɪplɔɪdˈpɑliˌplɔɪd

Biology

Of or denoting cells or nuclei containing more than two homologous sets of chromosomes.
these cells have a highly polyploid nucleus
Example sentencesExamples
- We also investigated a possible DMSO effect on the frequency of polyploid and endo-reduplicated cells by chromosome counting.
- Formation of polyploid nuclei as a consequence of failure of chromosome segregation in the presence of ICRF-193 was also reported in HeLa cells.
- Weak png mutations permit several transient S-M cycles to occur, producing embryos with a characteristic phenotype of multiple polyploid nuclei.
- In all four cases the embryos produced by mutant females had a small number of apparently polyploid nuclei rather than the normal, large number of diploid syncytial nuclei.
- As can be seen in Fig 4A and Fig B, the developing egg chambers in these ovarioles contain nurse cells with polyploid nuclei and a cell at the posterior that may correspond to the oocyte.

noun ˈpɒlɪplɔɪdˈpɑliˌplɔɪd

Biology

A polyploid organism, variety, or species.
many of our cultivated plants are polyploids
Example sentencesExamples
- The process of concerted evolution can best be studied in synthetic polyploids or in natural polyploids of clear and very recent ancestry.
- Attempts to introduce variability from wild diploid species into polyploids have taken several paths and have frequently met with difficulty.
- Different from bivalent polyploids, multivalent polyploids pair their chromosomes among more than two homologous copies at meiosis.
- Data are presented on the natural occurrence of polyploids, the induction of tetraploids using colchicine and nuclear DNA amounts of diploids and polyploids of both species.
- The duplicated genetic material in the polyploids facilitates hybridization and introgression among different polyploid species leading to the production of recombinant genomes that barely can be formed at the diploid level.

Derivatives

polyploidy

noun ˈpɒlɪplɔɪdiˈpɑləplɔɪdi

Biology

These include the early evolution of recombination, redundancy through polyploidy, division into chromosomes, and overlapping sequences as a means of reducing mutational targets.
Example sentencesExamples
- This article generalizes their approach to allow for arbitrary modes of inheritance, including diploidy, polyploidy, sex linkage, cytoplasmic inheritance, and genomic imprinting.
- Ring chromosomes, chromatid exchanges and polyploidies were also observed at some treatments.
- The gymnosperms are characterized by large genomes and relatively low chromosome numbers; polyploidy is rare.
- No significant increase in cells with chromosomal aberrations, polyploidy or endoreduplication was observed at the concentrations analyzed.

Definition of polyploid in US English:

polyploid

adjectiveˈpɑliˌplɔɪdˈpälēˌploid

Biology

1(of a cell or nucleus) containing more than two homologous sets of chromosomes.
these cells have a highly polyploid nucleus
Example sentencesExamples
- As can be seen in Fig 4A and Fig B, the developing egg chambers in these ovarioles contain nurse cells with polyploid nuclei and a cell at the posterior that may correspond to the oocyte.
- In all four cases the embryos produced by mutant females had a small number of apparently polyploid nuclei rather than the normal, large number of diploid syncytial nuclei.
- Formation of polyploid nuclei as a consequence of failure of chromosome segregation in the presence of ICRF-193 was also reported in HeLa cells.
- We also investigated a possible DMSO effect on the frequency of polyploid and endo-reduplicated cells by chromosome counting.
- Weak png mutations permit several transient S-M cycles to occur, producing embryos with a characteristic phenotype of multiple polyploid nuclei.
1. 1.1 (of an organism or species) composed of polyploid cells.
  Example sentencesExamples
  Selaginella, the largest heterosporous genus, has only a few polyploid species, although a large dysploid variation has been reported.
  Nevertheless, the frequency of polyploid species, at least amongst the endemic elements, would remain strikingly low.
  The Ph1 locus has a strong suppressive effect on heterogenetic pairing and almost entirely prevents recombination between homeologous chromosomes in polyploid wheats.
  The number of mapped microsatellite DNA markers presently available can be used effectively, now, to understand the behavior of meiotic chromosomes in diploid and polyploid oysters.
  Here we used a PCR-product cloning approach for estimating the genotype of polyploid individuals that are heterozygous for two or more alleles.

nounˈpɑliˌplɔɪdˈpälēˌploid

Biology

A polyploid organism, variety, or species.
many of our cultivated plants are polyploids
Example sentencesExamples
- Data are presented on the natural occurrence of polyploids, the induction of tetraploids using colchicine and nuclear DNA amounts of diploids and polyploids of both species.
- The process of concerted evolution can best be studied in synthetic polyploids or in natural polyploids of clear and very recent ancestry.
- The duplicated genetic material in the polyploids facilitates hybridization and introgression among different polyploid species leading to the production of recombinant genomes that barely can be formed at the diploid level.
- Attempts to introduce variability from wild diploid species into polyploids have taken several paths and have frequently met with difficulty.
- Different from bivalent polyploids, multivalent polyploids pair their chromosomes among more than two homologous copies at meiosis.

单词	polyploid
释义	Definition of polyploid in English: polyploid adjective ˈpɒlɪplɔɪdˈpɑliˌplɔɪd Biology Of or denoting cells or nuclei containing more than two homologous sets of chromosomes. these cells have a highly polyploid nucleus Example sentencesExamples We also investigated a possible DMSO effect on the frequency of polyploid and endo-reduplicated cells by chromosome counting. Formation of polyploid nuclei as a consequence of failure of chromosome segregation in the presence of ICRF-193 was also reported in HeLa cells. Weak png mutations permit several transient S-M cycles to occur, producing embryos with a characteristic phenotype of multiple polyploid nuclei. In all four cases the embryos produced by mutant females had a small number of apparently polyploid nuclei rather than the normal, large number of diploid syncytial nuclei. As can be seen in Fig 4A and Fig B, the developing egg chambers in these ovarioles contain nurse cells with polyploid nuclei and a cell at the posterior that may correspond to the oocyte. noun ˈpɒlɪplɔɪdˈpɑliˌplɔɪd Biology A polyploid organism, variety, or species. many of our cultivated plants are polyploids Example sentencesExamples The process of concerted evolution can best be studied in synthetic polyploids or in natural polyploids of clear and very recent ancestry. Attempts to introduce variability from wild diploid species into polyploids have taken several paths and have frequently met with difficulty. Different from bivalent polyploids, multivalent polyploids pair their chromosomes among more than two homologous copies at meiosis. Data are presented on the natural occurrence of polyploids, the induction of tetraploids using colchicine and nuclear DNA amounts of diploids and polyploids of both species. The duplicated genetic material in the polyploids facilitates hybridization and introgression among different polyploid species leading to the production of recombinant genomes that barely can be formed at the diploid level. Derivatives polyploidy noun ˈpɒlɪplɔɪdiˈpɑləplɔɪdi Biology These include the early evolution of recombination, redundancy through polyploidy, division into chromosomes, and overlapping sequences as a means of reducing mutational targets. Example sentencesExamples This article generalizes their approach to allow for arbitrary modes of inheritance, including diploidy, polyploidy, sex linkage, cytoplasmic inheritance, and genomic imprinting. Ring chromosomes, chromatid exchanges and polyploidies were also observed at some treatments. The gymnosperms are characterized by large genomes and relatively low chromosome numbers; polyploidy is rare. No significant increase in cells with chromosomal aberrations, polyploidy or endoreduplication was observed at the concentrations analyzed. Definition of polyploid in US English: polyploid adjectiveˈpɑliˌplɔɪdˈpälēˌploid Biology 1(of a cell or nucleus) containing more than two homologous sets of chromosomes. these cells have a highly polyploid nucleus Example sentencesExamples As can be seen in Fig 4A and Fig B, the developing egg chambers in these ovarioles contain nurse cells with polyploid nuclei and a cell at the posterior that may correspond to the oocyte. In all four cases the embryos produced by mutant females had a small number of apparently polyploid nuclei rather than the normal, large number of diploid syncytial nuclei. Formation of polyploid nuclei as a consequence of failure of chromosome segregation in the presence of ICRF-193 was also reported in HeLa cells. We also investigated a possible DMSO effect on the frequency of polyploid and endo-reduplicated cells by chromosome counting. Weak png mutations permit several transient S-M cycles to occur, producing embryos with a characteristic phenotype of multiple polyploid nuclei. 1.1 (of an organism or species) composed of polyploid cells. Example sentencesExamples Selaginella, the largest heterosporous genus, has only a few polyploid species, although a large dysploid variation has been reported. Nevertheless, the frequency of polyploid species, at least amongst the endemic elements, would remain strikingly low. The Ph1 locus has a strong suppressive effect on heterogenetic pairing and almost entirely prevents recombination between homeologous chromosomes in polyploid wheats. The number of mapped microsatellite DNA markers presently available can be used effectively, now, to understand the behavior of meiotic chromosomes in diploid and polyploid oysters. Here we used a PCR-product cloning approach for estimating the genotype of polyploid individuals that are heterozygous for two or more alleles. nounˈpɑliˌplɔɪdˈpälēˌploid Biology A polyploid organism, variety, or species. many of our cultivated plants are polyploids Example sentencesExamples Data are presented on the natural occurrence of polyploids, the induction of tetraploids using colchicine and nuclear DNA amounts of diploids and polyploids of both species. The process of concerted evolution can best be studied in synthetic polyploids or in natural polyploids of clear and very recent ancestry. The duplicated genetic material in the polyploids facilitates hybridization and introgression among different polyploid species leading to the production of recombinant genomes that barely can be formed at the diploid level. Attempts to introduce variability from wild diploid species into polyploids have taken several paths and have frequently met with difficulty. Different from bivalent polyploids, multivalent polyploids pair their chromosomes among more than two homologous copies at meiosis.
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