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1 de may. de 2024 · The simian line, also known as the "simian crease," is a unique feature found on the palms of some individuals. It is characterized by a single horizontal crease that runs across the palm, replacing the typical two creases that most people have.
4 de may. de 2024 · The fingertips are tapered and cold sensitivity on hands and feet is increased. Clinodactyly of the fifth finger, simian crease and cutaneous syndactyly or webbing of toes have occasionally been described. Flexion and contractures of the fingers and toes are occasionally present. The nails are rough, with transverse groves and ...
Hace 2 días · Down syndrome or Down's syndrome, also known as trisomy 21, is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. [3] It is usually associated with developmental delays, mild to moderate intellectual disability, and characteristic physical features. [1] [12] There are three types of Down syndrome, the ...
I just recently discovered how rare it was to have a simian crease on both hands. I also have one on each hand. Less than 1% of caucasion people in the world have it on both hands. Even rarer if you’re O-, and even more so if you have green eyes.
15 de may. de 2024 · 1. Having a Simian Line is relatively rare. The Simian Line, or Single Palmar Crease, is an atypical feature found in approximately 1% of the global population. Rather than the typical two transverse palmar creases, individuals with a Simian Line have a single, uninterrupted line across the palm.
2 de may. de 2024 · Tetrasomy 9p appears to result from spontaneous ( de novo) errors very early in embryonic development that occur for unknown reasons (sporadically). Tetrasomy 9p is a very rare chromosomal disorder in which the short arm of chromosome 9 (9p) appears four times (tetrasomy) rather than twice in cells of the body.
