Question

correct answer only...​

Answer 1

4. all the above

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.........,.......

Answer 2

it's a autosomal linked recessive disease named "Thalassemia". because I think but I'm not sure, it's inherited and not seen in every generation.

than , it is classified into two groups named a)alpha - Thalassemia- production of alpha- globin chain is affected. it is controlled by closely linked genes HBA1 and HBA2 on chromosome number 16 . and other, (b)beta globin chain is affected on chromosome number 11.

Anaemia is characteristic of this disease.

so, it's a qualitative problem.

Hence, your all options are right.