chromosome number


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chromosome number

n
(Genetics) the number of chromosomes present in each somatic cell, which is constant for any one species of plant or animal. In the reproductive cells this number is halved. See also diploid1, haploid
References in periodicals archive ?
Hypotriploid chromosome number in patients with B-cell Acute Lymphoblastic Leukaemia is a unique finding which, according to WHO classification of ALL, is an important prognostic factor itself and these cases have a favourable prognosis.
Aneuploidy is an error in cell division whereby the resulting daughter cells contain the incorrect chromosome number, either extra or less.
The number of QTLs detected for each trait, including the chromosome number, proportion of phenotypic variance explained by QTLs and total additive-by-additive interaction effect, is summarized in Table 2.
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.
Keywords: Fritillaria, chromosome number, UPGMA, PCA, Turkey.
Mitosis is the process that ensures that dividing cells preserve the chromosome number of their progenitors, while deviation from this, a condition known as aneuploidy, represents the most common feature in human cancers.
Phylogenetic Relationships and Chromosome Number Evolution in Passiflora.
Most moths and butterflies have a modal chromosome number n = 31, which is considered to be the ancestral number for Lepidoptera (Lukhtanov 2000; Van't Hoff et al.
Except for male Megupsilon and Garmanella, the karyotypes have the typical cyprinodontiform chromosome number (Gold etal.
G-banding analysis revealed that the changes in chromosome number were present in most cells, and either aneuploidy or polyploidy was identified within them.
The first phase that predominantly focused on the determination of chromosome number started with the finding of two Vitis species (OLMO, 1937) and has continued until now mainly regarding the detection of chromosome duplication, which either may appear spontaneously, or might be induced by chemical agents or may also appear in plants regenerated through tissue culture (KUKSOVA et al.
Some other aneuploidies (conditions where an abnormal chromosome number is present) are also common targets for prenatal detection, including trisomy for chromosomes 18 and 13 or abnormal numbers of sex chromosomes.

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