haploid


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Related to haploid: Haploid number

haploid

 [hap´loid]
having half the number of chromosomes characteristically found in the somatic (diploid) cells of an organism; typical of the gametes of a species whose union restores the diploid number.

hap·loid

(hap'loyd),
Denoting the number of chromosomes in sperm or ova, which is half the number in somatic (diploid) cells; the haploid number in normal human beings is 23.
Synonym(s): monoploid
[G. haplos, simple, + eidos, appearance]

haploid

/hap·loid/ (hap´loid)
1. having half the number of chromosomes characteristically found in the somatic (diploid) cells of an organism; typical of the gametes of a species whose union restores the diploid number.
2. an individual or cell having only one member of each pair of homologous chromosomes.

haploid

(hăp′loid′)
adj.
Having a single set of unpaired chromosomes, as in a germ cell, such as an egg or sperm, or in a moss plant or a drone bee.
n.
An organism having haploid cells.

haploid

[hap′loid]
Etymology: Gk, haploos, single, eidos, form
having only one complete set of nonhomologous chromosomes. Also monoploid, monoploidic. haploidy, n.

haploid

Genetics adjective Referring to:
1. A normal chromosome complement–expressed as n.
2. A cell with only one copy of each chromosome type–ie, half the number of chromosomes present in other cells; gametes–ie, sperm and ova are haploid. See Chromosome, Diploid, Polypoid, Prokaryote.

hap·loid

(hap'loyd)
Denoting the number of chromosomes in sperm or an oocyte, which is half the number in somatic (diploid) cells; the haploid number in normal human beings is 23.
[G. haplos, simple, + eidos, appearance]

haploid

Having half the number of chromosomes present in a normal body cell. The germ cells, the sperms and eggs (ova) are haploid, so that, on fusion, the full (DIPLOID) number is made up. From the Greek haploeides , single.

haploid

  1. (of a cell nucleus) containing one of each type of chromosome.
  2. a haploid organism in which the main life stage has cell nuclei with one of each type of chromosome, written as ‘n’. Such organisms (e.g. fungi, many algae) usually have a brief DIPLOID (2) phase (2n), returning to the haploid state via MEIOSIS. See ALTERNATION OF GENERATIONS.

haploid,

adj possessing just one set of nonhomologous chromosomes. Also called
monoploid or
monoploidic.

haploid

having half the number of chromosomes characteristically found in the somatic (diploid) cells of an organism; typical of the gametes of a species whose union restores the diploid number.

haploid karyotype
References in periodicals archive ?
The patients included 68 with near haploid ALL and 34 with low hypodiploid ALL.
Last year, Chan and UC Davis postdoctoral researcher Maruthachalam Ravi showed that they could breed haploid Arabidopsis plants that carried chromosomes from only one parent.
I would be very skeptical at this point and really look at what they define as sperm--an actual moving sperm cell or just a haploid cell that can be used to implant into an egg cell?
Cardinium symbionts induce haploid thelytoky in most clones of three closely related Brevipalpus species.
We used computer simulation to determine whether including inbreeding-environment interactions reduces the median time to extinction (MTE), and we examined the relationship between the carrying capacity (K), the frequency of stressful environmental conditions (P), and the number of haploid lethal equivalents (B) to the decrease in extinction time.
For the class of haploid exchangeable population models with non-overlapping generations and population size N it is shown that, as N tends to infinity, convergence of the time-scaled ancestral process to Kingman's coalescent and convergence in distribution of the scaled times back to the most recent common ancestor (MRCA) to the corresponding times back to the MRCA of the Kingman coalescent are equivalent.
In "Define Medical Terminology and Conditions Associated with Conception," she exploits the lingo of pregnancy: "sperm & egg," "fertilization," "zygote," "oogenesis," and "formation of a haploid ovum.
The resulting genomes were haploid, meaning that they represented only half the chromosomes.
Y thalws, sy'n bwysig yn fasnachol, ydi rhan haploid y gwymon.
However, other abnormalities such as haploid deletions involving chromosome 10p (20) and balanced translocation between chromosome 2 and 22 ie.
Spermatogenic stem cells (2n) undergo transformation and a series of meiotic cell divisions to produce haploid (n) spermatids.
Diversity of mtDNA can be reduced to a much greater degree by a bottleneck than diversity of nuclear DNA because mtDNA is 4 times more sensitive to genetic drift due to its haploid, uniparental mode of inheritance (Birky et al.