Multiple choice

According to the recent studies, by the age of 35 years nearly 100% of people with Down syndrome develop

  1. Alzheimer syndrome

  2. Increased fertility

  3. Fragile-X syndrome

  4. Brett syndrome
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A Correct answer
Explanation

This progressive disease characterized by degeneration of brain cells resulting in severe memory loss usually occurs in old age for normal people, if it occurs at all. It is far more common among Down syndrome sufferers and it occurs at an earlier age.

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