There is no single Hox gene called bithorax, so what causes the four distinct mutant phenotypes collected and collectively referred to as the bithorax mutant by Ed Lewis?

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Each mutant represents mutations in different enhancer elements that control expression of a single coding region, the Ultrabithorax gene.

Each mutant represents mutations in different exons of one Ultrabithorax gene.

The mutants all shared the same mutation in the Ultrabithorax gene, but the gene exhibits incomplete penetrance, which results in a variety of phenotypes.

Each mutant shared a mutation in the Ultrabithorax gene, but some also shared mutations in the Antennapediaregion, which leads to a more severe phenotype.

 

asked Jun 21, 2013 in Genetics by GeneX ~Top Expert~ (7,947 points)
    

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Each mutant represents mutations in different enhancer elements that control expression of a single coding region, theUltrabithorax gene.

 

answered Jun 21, 2013 by GeneX ~Top Expert~ (7,947 points)

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