The globin chains making up Hb A are:
a. Two e and two g chains
b. Two V and two e chains
c. Two a and two g chains
d. Two a and two b chains
ANS: D
Hb A is composed of two a and two g chains; V and e chains are embryonic chains and are seen only in fetal life. Hb F is composed of two a and two g chains.
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