Question

Why are color-blindness and thalassaemia categorised as Mendelian disorders? Write the symptoms of these diseases seen in people suffering from them.

Answer 1

Thalassaemia and colour blindness are categorised as Mendelian disorders because these are determined by alternation or mutation in a single gene. Symptoms of thalassaemia: The main symptoms of thalassaemia are anaemia, jaundice, hepatosplenomegaly, cardiac enlargement and skeletal deformities Symptoms of colour blindness: The main symptom of colour blindness is the inability of certain human beings to distinguish red and green colour.