It is a mutation of cross linked genes in which during separation of haploid cells carries an extra set of information which can cause multiple outcomes, xxy xyy xxx where one is common, one has a 50% survival rate and one has been documented to only have less than 1% survival rate.
There is no curent reasurch for XYY syndrome sorry...
by some person
Nondisjunction in Meiosis 2
XYY Syndrome
Down syndrome IS the diagnosis.
There are seven possible genetic sexes: XX = female XY = male X = female with Turner syndrome XXX = female with X-trisomy XXY = intersex with Klinefelter syndrome XYY = male with 47,XYY syndrome XXYY = male with 48,XXYY syndrome
excellent prognosis. men with xyy syndrome (jacob's syndrome) live comfortably.
Jacob's Syndrome, or XYY Syndrome was first discovered by cytogeneticists Joe Hin Tjio and Albert Levan.
The diagnosis is made by taking a family history and a thorough examination of the patient's eyes, heart, and bone structure.
Yes, Klinefelter's syndrome is due to the XXY genotype.
Yes, it is possible to have XXX, XXY, or XYY sex chromosomes.
The diagnosis remains uncertain because of the mildness of the patient's symptoms, the absence of a family history of the syndrome, and other variables. These borderline conditions are sometimes referred to as marfanoid syndromes.