1. haploid - Noun
2. haploid - Adjective
of a cell or organism having a single set of chromosomes
(genetics) an organism or cell having only one complete set of chromosomes
Source: WordNetAll plants and many fungi and algae switch between a haploid and a diploid state, with one of the stages emphasized over the other. Source: Internet
Animals hatnote Hoverflies mating Most sexually reproducing animals spend their lives as diploid organisms, with the haploid stage reduced to single cell gametes. Source: Internet
Because the ploidy is reduced from diploid to haploid, meiosis I is referred to as a reductional division. Source: Internet
Community interactions Coccolithophorids are predominantly found as single, free-floating haploid or diploid cells. Source: Internet
As an example, the chromosomes of common wheat are believed to be derived from three different ancestral species, each of which had 7 chromosomes in its haploid gametes. Source: Internet
A protocell that was haploid (one copy of each RNA gene) would be vulnerable to damage, since a single lesion in any RNA segment would be potentially lethal to the protocell (e.g. by blocking replication or inhibiting the function of an essential gene). Source: Internet