This book provides an account of the structure of A-bar constructions, focusing on wh-questions and fragment answers in Dagbani, a Mabia (Gur) language spoken in Northern Ghana. It demonstrates that Dagbani wh-phrases occur in two distinct positions, ex-situ and in-situ, except for subject wh-phrases, which only occur in the former position. It provides a theoretical analysis of the distribution of the wh-phrases couched within minimalism (Chomsky 1995). Finally, the book gives an account of the structural correlation between wh-questions and their answers with the focus on the syntactic derivation of fragment answers. The author contends that the derivation of fragment answer involves two processes: A-bar movement together with PF-deletion