Can someone with Down syndrome have normal intelligence?
Can someone with Down syndrome have normal intelligence?
The average IQ of a young adult with Down syndrome is 50, equivalent to the mental ability of an 8- or 9-year-old child, but this can vary widely. The parents of the affected individual are usually genetically normal. The probability increases from less than 0.1% in 20-year-old mothers to 3% in those of age 45.
Is Down syndrome inherited from the mother or father?
Half the chromosomes come from the egg (the mother) and half come from the sperm (the father). This XY chromosome pair includes the X chromosome from the egg and the Y chromosome from the sperm.
What to say when a baby is born with a disability?
If your friend or family member has had a baby who is healthy but has been diagnosed with a physical or developmental disability, you can also say I'm here for you. Let your friend know: I'm going to learn about (the disability) with you. It's also okay to be honest if you're not sure what to say that can help.
How can you tell if someone has Down syndrome?
People who have Down's syndrome are all unique individuals and should be acknowledged as a person first and foremost. Down's syndrome is only a part of the person; they should never be referred to as “a Down's” or “a Down's person”.
What do the 3 arrows for Down syndrome mean?
The three arrows are the perfect symbol for parents of Down syndrome, May explained, because the number three is representative of the three 21st chromosomes that result in Down syndrome. The arrows, May said, represent how the parents of these special children "rise up and move forward.
What does t21 mean?
As Trisomy 21 (T21) is the most common genetic disorder in the human population, it has been intensively studied.