ploidy
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Ploidy
"Haplo" redirects here. For the fictional character, see
The Death Gate Cycle
. Ploidy is the number of
homologous sets of chromosomes
in a
biological cell
. The ploidy of cells can vary within an organism. In humans, most cells are diploid (containing one set of chromosomes from each parent), but sex cells (
sperm
and
egg
) are haploid. In contrast, tetraploidy (four sets of chromosomes) is a type of
polyploidy
and is common in
plants
, and not uncommon in
amphibians
,
reptiles
, and various species of
insects
.
See more at Wikipedia.org...
This article uses material from
Wikipedia
®
and is licensed under the
GNU Free Documentation License
NCI Dictionary of Cancer Terms
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ploidy
[PLOY-dee]
The number of sets of chromosomes in a cell or an organism. For example, haploid means one set and diploid means two sets.
A Service of the
National Cancer Institute
.
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