American Heritage® Dictionary of the English Language, Fourth Edition
- adj. Having the same number of sets of chromosomes as a germ cell or half as many as a somatic cell.
- adj. Having a single set of chromosomes.
- n. An organism having haploid cells.
- adj. cytology Of a cell having a single set of unpaired chromosomes, such as a gamete.
- n. A cell which is haploid; an organism, such as a fungus, with haploid cells.
GNU Webster's 1913
- adj. (Biol.) having half the number of chromosomes normally present in somatic cells; having only one chromosome of each type, and therefore having only one complete set of genes; Contrasted with
diploidand polyploid. See also diploid.
- adj. of a cell or organism having a single set of chromosomes
- n. (genetics) an organism or cell having only one complete set of chromosomes
- haplo- + -oid (Wiktionary)
- From Greek haplous, single; see sem-1 in Indo-European roots + -oid. (American Heritage® Dictionary of the English Language, Fourth Edition)
“The gametes they produce are haploid, meaning that they contain only one of each chromosome pair.”
“The nucleus of sperm and eggs are haploid, meaning they only have half their normal compliment of genetic material, while somatic cell nuclei are diploid (it occurs to Sci that she's gonna have to explain meiosis some day ...).”
“Males are haploid; they have only one copy of the genome.”
“Daniel Smith: So selection would favor haploid reproduction?”
“In environments where fast reproduction is important, haploid organisms can have an advantage.”
“But because males are haploid (and assuming monandry), her sisters share 75% of her genes.”
“As for “life starts at conception” — two haploid gametes, themselves “alive”, certainly a product of “life”, come together to form a diploid cell which eventually becomes whatever its DNA demands: a mouse, an elephant, a human, whatever.”
“The significance of the “diploid” genome is that Levy and colleagues obtained sequence from both chromosomes in each pair, rather than settling for a composite “haploid” genome.”
“The inferred chromosome numbers of these extinct species suggest that seven to nine is the primitive haploid chromosome number of angiosperms and that most angiosperms approximately 70 percent have polyploidy in their history.”
“By the genetic bonds and Mendelian Progression, by diploid dupes and haploid hopes, I order you to do my will!”
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