Multiple choice

Which of the following are XY-linked hereditary disorders?

  1. Colour blindness
  2. Hypertrichosis
  3. Haemophilia
  4. Retinitis pigmentosa
  5. Total colour blindness

  1. 1 and 2

  2. 2 and 3

  3. 3 and 4

  4. 4 and 5

  5. All of the above

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Retinitis pigmentosa is XY-linked hereditary, degenerative eye disease that causes severe vision impairment and often blindness. Total color blindness is severe vision imparement leaving a person completely unable to distinguish any color. It is a XY-linked hereditary disease.