A recessive gene is the main cause of:

Name: A recessive gene is the main cause of:
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Huntington's disease is caused by a dominant gene, Turner syndrome and Down's syndrome are chromosomal disorders not caused by a single gene, whereas Sickle cell disease is caused by a recessive gene, meaning an individual must inherit two copies of the abnormal gene (one from each parent) to develop the disease.

A Recessive Gene Is the Main Cause Of