Which of the following is a quantitative autosomal recessive Mendelian disorder?

Thalassemia is a quantitative genetic disorder, synthesizing too few globin molecules while sickle cell anemia is a qualitative problem of defective functioning of globin molecule.

Color-blindness is a sex-linked recessive disorder. Patau syndrome is a chromosomal condition associated with severe intellectual disability and physical abnormalities in the body. It is a result of trisomy 13 (47, +13) chromosome.