haploid

Single chromosome set

Haploid describes a cell or organism with only one complete set of chromosomes—half the genetic material of a normal body cell.

In humans, egg and sperm cells are haploid, each carrying 23 chromosomes that combine during fertilization to create a diploid cell with the full 46.

Haploid cells are essential for sexual reproduction.

organisms

gametophyte

Haploid reproductive generation

fungi · yeast · drone bee · algae · liverwort · hornwort · megaspore · thallus · mycelium

meiosis

meiosis

Gamete-producing cell division

tetrad · recombination · segregation · bivalent · synapsis · chiasma · equational · oocyte · megasporocyte

gamete

sperm

Male reproductive cell

  • eggReproductive cell in shell
  • ovumFemale reproductive cell
  • pollenFloral reproductive grains

oocyte · fertilization · zygote · anther · ovule · spermatogenesis · oogenesis · germline

lifecycle

gametophyte

Haploid reproductive generation

fertilization · sporulation · germination

chromosome

unpaired

Having no counterpart

  • karyotypeOrganized chromosome display
  • genomeOrganism's total hereditary material
  • alleleGene variant at one locus

polyploid · triploid · tetraploid · chromosome number · dosage · gene expression · X chromosome · Y chromosome

Categories
Opposites
chromosome set number

haploiddiploid

Two complete chromosome sets

polyploid · triploid · tetraploid

Family

diploid

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Abstract · Rated G