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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.
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).
triploid (three sets; 3x), for example sterile saffron crocus, or seedless watermelons, also common in the phylum Tardigrada [11] tetraploid (four sets; 4 x ), for example, Plains viscacha rat , Salmonidae fish, [ 12 ] the cotton Gossypium hirsutum [ 13 ]
Triploid organisms, for instance, are usually sterile. Because of this, triploidy is commonly exploited in agriculture to produce seedless fruit such as bananas and watermelons. If the fertilization of human gametes results in three sets of chromosomes, the condition is called triploid syndrome. [citation needed]
Trigeminal trophic syndrome; Triple X syndrome; Triploid syndrome; Trisomy 8; Tropical splenomegaly syndrome; Trotter's syndrome; Truman Syndrome; Tsukuhara syndrome; Tumor lysis syndrome; Tumor necrosis factor receptor associated periodic syndrome; Turner syndrome; Twiddler's syndrome; Twin Anemia-Polycythemia Sequence; Twin-to-twin ...
Confined placental mosaicism (CPM) represents a discrepancy between the chromosomal makeup of the cells in the placenta and the cells in the fetus. CPM was first described by Kalousek and Dill in 1983. [1]
The result of digyny is a triploid zygote. In humans, both gametes (ovum and sperm) are normally haploid and give rise to a diploid zygote. [1] Digyny results in gestational abnormalities in humans, including an abnormally small placenta and a very growth-restricted fetus. As a result, the majority of triploid pregnancies are spontaneously aborted.
Karyotype of a human with Trisomy 21 (Down syndrome). Trisomies can occur with any chromosome, but often result in miscarriage rather than live birth.For example, Trisomy 16 is most common in human pregnancies, occurring in more than 1%, but the only surviving embryos are those having some normal cells in addition to the trisomic cells (mosaic trisomy 16). [3]