The syndrome occurs in approximately 1 out of 1,200 males and 1 out of 2,500 females.
The syndrome occurs in approximately 1 out of 1,200 males and 1 out of 2,500 females. Also known as Martin-Bell syndrome, its symptoms include large ears and oversized testes in the male. It occurs when a particular gene is found to contain a tandemly repeated trinucleotide sequence near its 5 prime end. The mutation responsible involves expansion of this repeat segment. In other words, there is a break in the long arm of its namesake chromosome. FTP, name this most common cause of mental retardation.
The syndrome occurs in approximately 1 out of 1,200 males and 1 out of 2,500 females.
{Fragile X} Syndrome