Hb SS, Hb SC, Hb SB thal &#x7C; DBS &#x7C; Chemistry - non-challenge
hb ss, hb sc, hb sb thal &#x7c; dbs &#x7c; chemistry - non-challenge
Hb SS, Hb SC, Hb SB thal &#x7C; DBS &#x7C; Chemistry - non-challenge
hb ss, hb sc, hb sb thal &#x7c; dbs &#x7c; chemistry - non-challenge