Dwarfism results due to :
(a) excessive secretion of thyroxine hormone
(b) excessive secretion of growth hormone
(c) less secretion of adrenaline hormone
(d) less secretion of growth hormone
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Solution
(d) less secretion of growth hormone
Dwarfism is characterised by retarded physical growth and a normal brain. It is caused due to the hypo-secretion of growth hormone.