The condition known as cretinism is caused by the deficiency of? by Sunday | Jun 28 | Biology WAEC | 0 comments A. adrenalin B. vitamin A C. insulin D. thyroxin E. vitamin C Correct Answer: Option D – thyroxin Users Also Read These:Night blindness in an animal is caused by a deficiency of?The deficiency of vitamin D and calcium ions in the…Which of the following diseases is caused by…Yellow colouration of the lower leave of a growing…A condition which a gene does manifest observation…