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Having a Down XXXXXXXX XX XXXX a difficult XXXXXXXXX XXX an XXXXXXXXXX to have. They have XXXX XXXXXXXX XXX mental XXXXXXXXXXXX that XXXX them to XXXXXXXXXXXXXX. Physical XXXXXXXX XX having a XXXX syndrome. Including flattening XX XXX XXXX; slanting XX the eyelids; a XXX XXXXXXX the first XXX XXX XXXXXX toes; a XXXXXXXXX XXXXX bridge; relatively XXXXX XXXX, mouth, XXXXX and XXXX; XXXXX XXXXXXX; XXXXXXXXX XXXXXX XXXX XXX XXXXX ligaments XXXXX XXXXXX. Not XXXXX child with Down syndrome XXX XXX of XXXXX characteristics and XXXX may XXXX only a few. XXX other characteristic, XX not appropriately XXX XX including hearing XXXXXXXX, XXXXXXXXXX disease XXX.
Down XXXXXXXX is XXXXXX XX an error in XXXXXXX XXXXXXXXX in XXX XXXXX chromosome 21 XX be in a XXXXXX. During XXXXXXX l XXX XXXXXXXXXX chromosomes don’t XXXXXXXX XXXXXX XXXXXXXX. During anaphase ll the sister chromatids don’t XXXXXXXX in XXXXXXX ll. When XXXX XXXXXX XXXX 24 chromosomes fuses XXXX another XXXXXX with 23 chromosomes it XXXXX a zygote XXXX XX XXXXXXXXXXX, resulting in XXX offspring to have down XXXXXXXX.
XXXXXXXXXXXXX 1 in 750 babies are XXXX with Down syndrome. Women under XX have a 1 in 1000 XXXXXX of XXXXXX a baby with Down XXXXXXXX XXXXX women who XXX XX will have a X in XX XXXXXX. The XXXXX the XXXXX XXXX the XXXX often XXX-XXXXXXXXXXX XXXXXXX while producing XXXXXXX.
XXXXXXXX exams such as XXXXXX translucency XXXXXXXXX, triple or quadruple XXXXXX, XXXXXXXXXX XXXXXX, or a genetic XXXXXXXXXX XXX XXXX XX the baby has XXX physical signs of Down XXXXXXXX. These XX XXX guarantee a diagnosis. XXXXXX XXXX XXX XXXXXXX a XXXXXXXXX are chorionic villus sampling, XXXXXXXXXXXXX, and percutaneous XXXXXXXXX XXXX XXXXXXXX can all XXXXXXX whether or XXX XXX baby XXX down XXXXXXXX positively by taking a karyotype XX XXX of XXX cells.