Correct option:(2)Sickle cell anaemia – Autosomal recessive trait, chromosome-11
Solution:
●Phenylketonuria is an autosomal recessive trait.
●Thalassemia is an autosomal recessive disease, gene present on chromosome number 11.
●Haemophilia is an X linked recessive disease.
●Sickle cell anemia is autosomal recessive trait present on chromosome number 11.