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Principles of Inheritance and Variation. — Bio Zoology STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12Bio ZoologyPrinciples of Inheritance and Variation.2 Marks
Question
Write a note on Huntington’s chorea.
✓

Answer

Huntington’s chorea is inherited as an autosomal dominant lethal gene in man. It is characterized by involuntary jerking of the body and progressive degeneration of the nervous system, accompanied by gradual mental and physical deterioration. The patients with this disease usually die between the age of 35 and 40.

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