The fumarate - hydratase - gene , located on the long arm of chromosome 1 ( 1q42.3-43 ) , stretches over 22 kilobases and has 10 exons .
The fumarate hydratase gene , located on the long arm of chromosome 1 ( 1q42.3-43 ) , spans 22 kilobases and has 10 exons .

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[1]. no.
[2]. yes.
[2].