ploidy


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ploi·dy

(ploy'dē),
The number of haploid sets in a cell. Gametes normally contain one; somatic cells two.
See also: polyploidy.
[-ploid + -y, condition]

ploidy

(ploi′dē)
n.
A multiple of the basic number of chromosomes in a cell.

ploi·dy

(ploy'dē)
The number of haploid sets in a cell. Gametes normally contain one; autosomal cells, two.
See also: polyploidy
[ploid + -y, condition]

ploidy

The number of copies of the set of chromosomes in a cell. A normal diploid cell with two copies has a ploidy of two; a haploid cell with one copy, such as an ovum or a spermatozoon, has a ploidy of one.

ploidy

the number of chromosome sets making up the total genome of an organism.

Thus the ploidy of normal humans is two and is written 2n. See DIPLOID (1).

References in periodicals archive ?
To what extent might the mortality reflect something inherent in the oysters themselves, for example their genetic heritage, their ploidy, or their physiology?
The proposed approaches use standard histology for morphologic evaluation to select tissue for analysis and advocate genotyping as the preferred molecular technique (use of less specific techniques, such as flow cytometric DNA ploidy analysis or fluorescence in situ hybridization, is discouraged).
Pearson rank order correlations were computed with biometrics of bivalves, environmental variables and water organic content at each site cultivation and ploidy (Bhujel, 2008).
We studied six populations (two diploid, two tetraploid, and two of mixed ploidy; i.e., containing both diploids and tetraploids) of Galax located in an area where both cytotypes are common.
The ploidy and chromosome number of synthetic polyploid of Brachiaria, Lolium and Pennisetum were identified by flow cytometry and chromosome counts, and the fertility was verified by pollen grain viability (CAMPOS et al., 2009; TIMBO et al., 2014; PEREIRA et al., 2014; PAULA et al., 2014).
After designating a ploidy level to each of 810 registers, including all species and through the use of a geographic information system, their distributions were analyzed based on those ploidy levels.
suggested that RRI alone could produce a high final ploidy compared to other small molecules or their combinations, it is still unclear whether the protocol is ubiquitous to all the megakaryocytes, and the molecular mechanism underlined still remains unknown.
It also has malignant potential due to abnormal DNA ploidy in lesional epidermis like other porokeratosis.7 The lesions of our case started typically at the age of twenty but appeared first on trunk.
A study on Arabidopsis tetraploid plants clearly indicated increase in ploidy level having a better effect on size of cell (Breuer et al., 2007).