Gene X is expressed in only one cell type in an animal. A mutant is identified that expresses Gene X in all cell types. The mutation is found to be recessive. Which of the following is the best explanation of the nature of this new mutation?

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asked Nov 23, 2012 in Genetics by GeneX ~Top Expert~ (7,941 points)
    

1 Answer

+1 vote

The mutation is a loss of function mutation in a gene that encodes a negative, trans-acting regulator that binds to a silencer sequence.

answered Nov 23, 2012 by GeneX ~Top Expert~ (7,941 points)

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