Multiple choice

Pick out the true statements regarding the sex chromosome abnormalities in humans.

  1. These generally have mild effects, which are rarely fatal.

  2. These are not gender specific.

  3. These cannot be diagnosed before birth.

  4. These are more common than autosomal abnormalities.
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A Correct answer
Explanation

Because sex chromosome abnormalities rarely result in an early death and their symptoms are not often severe, comparatively large number of people with these abnormalities survive to old age.

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