Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- adjective Having one or more extra sets of chromosomes.
- noun An organism with more than two sets of chromosomes.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective genetics having more than the usual number of complete sets of
chromosomes in a single cell - noun biology a
cell ororganism that has more than the usual number of complete sets of chromosomes
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun (genetics) an organism or cell having more than twice the haploid number of chromosomes
- adjective of a cell or organism having more than twice the haploid number of chromosomes
Etymologies
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Examples
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Wendel 2008 Partitioned expression of duplicated genes during development and evolution of a single cell in a polyploid plant.
Flagellum evolution -- how's your German? - The Panda's Thumb 2010
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Incipient polyploid speciation in the maidenhair fern (Adiantum pedatum, adiantaceae)?
On Thursday, the Legg report will be published along with... 2009
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Incipient polyploid speciation in the maidenhair fern (Adiantum pedatum, adiantaceae)?
On Thursday, the Legg report will be published along with... 2009
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Feeding of freshly irradiated wheat resulted in significantly increased incidence of polyploid cells in bone marrow, aneuploid cells in testis, reduction in number of spermatogonia of types A, B and resting primary spermatocytes as well as a higher mutagenic index.
Archive 2008-08-01 News from Mad Plato 2008
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If the diet was stored initially for 6 weeks following irradiation before being fed to the animals no increase in the number of polyploid cells was noted.
NUKED FOOD News from Mad Plato 2008
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If the diet was stored initially for 6 weeks following irradiation before being fed to the animals no increase in the number of polyploid cells was noted.
Archive 2008-08-01 News from Mad Plato 2008
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Feeding of freshly irradiated wheat resulted in significantly increased incidence of polyploid cells in bone marrow, aneuploid cells in testis, reduction in number of spermatogonia of types A, B and resting primary spermatocytes as well as a higher mutagenic index.
NUKED FOOD News from Mad Plato 2008
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One possibility is that the the macronucleus is not well-suited to reproduction, given that it carries a huge number of chromosomes and is polyploid to boot.
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When the feeding of the irradiated diet was stopped, the proportion of polyploid cells returned to the control level within a maximum of 6 weeks.
NUKED FOOD News from Mad Plato 2008
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When the feeding of the irradiated diet was stopped, the proportion of polyploid cells returned to the control level within a maximum of 6 weeks.
Archive 2008-08-01 News from Mad Plato 2008
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