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Both sickle cell anemia and Huntington's chorea are -
A
Bacteria-related diseases
B
Congenital disorders
C
Pollutant-induced disorders
D
Virus-related diseases
Detailed Solution
Congenital disorders are disorders present from birth; those caused by defective genes are inherited from the parents.
Sickle cell anaemia is an autosomal recessive genetic disorder, caused by a point mutation in the gene for the beta-globin chain of haemoglobin (glutamic acid is replaced by valine at the sixth position).
Huntington's chorea is an autosomal dominant genetic disorder that causes the progressive degeneration of nerve cells in the brain, with involuntary jerky movements; its symptoms usually appear in middle age.
Both are caused by defective genes that the person is born with, so both are congenital (genetic) disorders.
Neither is caused by bacteria, viruses or pollutants.
So both are congenital disorders.
Sickle cell anaemia is an autosomal recessive genetic disorder, caused by a point mutation in the gene for the beta-globin chain of haemoglobin (glutamic acid is replaced by valine at the sixth position).
Huntington's chorea is an autosomal dominant genetic disorder that causes the progressive degeneration of nerve cells in the brain, with involuntary jerky movements; its symptoms usually appear in middle age.
Both are caused by defective genes that the person is born with, so both are congenital (genetic) disorders.
Neither is caused by bacteria, viruses or pollutants.
So both are congenital disorders.