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  2. Triploid syndrome - Wikipedia

    en.wikipedia.org/wiki/Triploid_syndrome

    Triploid syndrome, also called triploidy, is a chromosomal disorder in which a fetus has three copies of every chromosome instead of the normal two. If this occurs in only some cells, it is called mosaic triploidy and is less severe. Most embryos with triploidy miscarry early in development.

  3. Polyploidy - Wikipedia

    en.wikipedia.org/wiki/Polyploidy

    This image shows haploid (single), diploid (double), triploid (triple), and tetraploid (quadruple) sets of chromosomes. Triploid and tetraploid chromosomes are examples of polyploidy. Polyploidy is a condition in which the cells of an organism have more than two paired sets of chromosomes.

  4. Diploid-triploid mosaicism - Wikipedia

    en.wikipedia.org/wiki/Diploid-triploid_mosaicism

    Diploid-triploid mosaicism is a human chromosome disorder. Individuals with diploid-triploid syndrome have some cells with three copies of each chromosome for a total of 69 chromosomes (called triploid cells) and some cells with the usual 2 copies of each chromosome for a total of 46 chromosomes (called diploid cells).

  5. List of organisms by chromosome count - Wikipedia

    en.wikipedia.org/wiki/List_of_organisms_by...

    The list of organisms by chromosome count describes ploidy or numbers of chromosomes in the cells of various plants, animals, protists, and other living organisms.This number, along with the visual appearance of the chromosome, is known as the karyotype, [1] [2] [3] and can be found by looking at the chromosomes through a microscope.

  6. Endosperm - Wikipedia

    en.wikipedia.org/wiki/Endosperm

    An endosperm is formed after the two sperm nuclei inside a pollen grain reach the interior of a female gametophyte or megagametophyte, also called the embryonic sac.One sperm nucleus fertilizes the egg cell, forming a zygote, while the other sperm nucleus usually fuses with the binucleate central cell, forming a primary endosperm cell (its nucleus is often called the triple fusion nucleus).

  7. File:Haploid, diploid ,triploid and tetraploid.svg - Wikipedia

    en.wikipedia.org/wiki/File:Haploid,_diploid...

    This image is a derivative work of the following images: File:Haploid_vs_diploid.svg licensed with Cc-by-sa-3.0, GFDL . 2010-06-05T17:27:06Z Ehamberg 720x1691 (31508 Bytes) fix a small rendering glitch

  8. Ploidy - Wikipedia

    en.wikipedia.org/wiki/Ploidy

    For example, most human cells have 2 of each of the 23 homologous monoploid chromosomes, for a total of 46 chromosomes. A human cell with one extra set of the 23 normal chromosomes (functionally triploid) would be considered euploid. Euploid karyotypes would consequentially be a multiple of the haploid number, which in humans is 23. [citation ...

  9. Flowering plant - Wikipedia

    en.wikipedia.org/wiki/Flowering_plant

    The synergid that the cells were released into degenerates; one sperm makes its way to fertilise the egg cell, producing a diploid (2n) zygote. The second sperm cell fuses with both central cell nuclei, producing a triploid (3n) cell. The zygote develops into an embryo; the triploid cell develops into the endosperm, the embryo's food supply.