Question

why sickle celled anemia is called molecular disease​

Answer 1

Explanation:

Sickle cell anemia is caused by a single code letter change in the DNA. This in turn alters one of the amino acids in the hemoglobin protein. Valine sits in the position where glutamic acid should be.

Answer 2

Answer:

bcz only one amino acid change occur in hemoglobin and this change is on molecular level ie.glutamin is replced by valin ...

hope this help