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haploid

   Also found in: Medical, Encyclopedia, Hutchinson 0.15 sec.
hap·loid  (hploid)
adj.
1. Having the same number of sets of chromosomes as a germ cell or half as many as a somatic cell.
2. Having a single set of chromosomes.
n.
An organism having haploid cells.

[From Greek haplous, single; see sem-1 in Indo-European roots + -oid.]

haploid
Adjective
Biol denoting a cell or organism with unpaired chromosomes [Greek haplous single]

haploid  (hploid)
Having a single set of each chromosome in a cell or cell nucleus. In most animals, only the gametes (reproductive cells) are haploid. Compare aneuploiddiploid See Note at mitosis.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.haploid - (genetics) an organism or cell having only one complete set of chromosomes
organism, being - a living thing that has (or can develop) the ability to act or function independently
genetic science, genetics - the branch of biology that studies heredity and variation in organisms
Adj.1.haploid - of a cell or organism having a single set of chromosomes
genetic science, genetics - the branch of biology that studies heredity and variation in organisms
diploid - of a cell or organism having two sets of chromosomes or twice the haploid number; "diploid somatic cells"
polyploid - of a cell or organism having more than twice the haploid number of chromosomes; "a polyploid cell"; "a polyploid species"


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? Mentioned in ? References in periodicals archive
 
Mitochondrial DNA is a useful marker in phylogenetic studies and molecular systematics because of its maternal inheritance, haploid nature, and rapid rate of evolution (38).
Resting, or diapause, eggs are haploid eggs that require fertilization and typically are produced after the production of males by females who have entered the sexual reproductive cycle.
Among many ants, bees, wasps, mites, and thrips, for example, unfertilized eggs develop into haploid males, which have just one set of chromosomes.
 
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