Suppose That a Homeotic Gene from Drosophila Is Introduced into an Arabidopsis

question 5

Multiple Choice

Suppose that a homeotic gene from Drosophila is introduced into an Arabidopsis embryo that has a pre-existing mutation in one of its homeotic flower genes. What effect would you expect and why?

• A)rescue (or negating)of the phenotype of the mutant because the fly Hox gene supplies the missing protein
• B)correction of the sequence in the mutant by recombination with the Drosophila gene sequence
• C)expression of the Drosophila homeotic gene correcting the mRNA of the mutant plant
• D)a mixture of roughly equal numbers of Drosophila and plant gene product, producing an intermediate phenotype
• E)no effect, because Hox genes are different from MADS box genes

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