haploids
Gametes, for example
Haploids are cells or organisms containing only one complete set of chromosomes—half the genetic material of the species' normal cells.
In humans, sperm and egg cells are haploid, each carrying 23 chromosomes that combine during fertilization to create a diploid cell with the full 46.
The term applies across biology wherever sexual reproduction occurs: Haploid spores give rise to the gametophyte generation in ferns.
Gamete fusion creating zygote
- zygoteFirst embryonic cell
- pollinationFlower reproductive transfer
- ovuleUnfertilized seed structure
- embryoOrganism before birth
seed · germination · cross-pollination · self-incompatibility · conjugation · sexual reproduction · gametophyte · clone
Haploid reproductive cell
- sporeAsexual reproductive cell
- pollenFloral reproductive grains
- ovumFemale reproductive cell
- germ cellReproductive cell for fertilization
megaspore · egg cell · nucleus · cytokinesis · meiosis · cell division · anther · oocyte
fertilization
Gamete fusion creating zygote
- zygoteFirst embryonic cell
- pollinationFlower reproductive transfer
- ovuleUnfertilized seed structure
embryo · seed · germination · cross-pollination · self-incompatibility · conjugation · sexual reproduction · gametophyte · clone · parthenogenesis
gamete
Haploid reproductive cell
germ cell · megaspore · egg cell · nucleus · cytokinesis · meiosis · cell division · anther · oocyte
chromosome
DNA strand carrying genes
gene · locus · mutation · genome · recessive · dominant · homozygous · inheritance · variation · phenotype
yeast
Fermenting fungus
- fungiSpore-reproducing decomposers
- algaePrimitive aquatic photosynthesizers
- mossSpore-bearing ground cover
fern · bee · ant · wasp · drone · protozoa · diatom · slime mold