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GCE Biology 1990 Question 25

Question 25

Hormonal Coordination

The condition known as cretinism is caused by the deficiency of

  1. A.adrenalin
  2. B.vitamin A
  3. C.insulin
  4. D.thyroxin
  5. E.vitamin C
Show the answer and explanation

Answer: D (thyroxin)

Explanation

Too little thyroxin in childhood causes cretinism: stunted body and mental growth.