Use the Following to Answer Questions

question 107

Multiple Choice

Use the following to answer questions :
The diagram below shows the association of phenotype and gene expression patterns in five different species. The top portion shows the phylogeny of the five species; below the phylogeny are the phenotypes of the five species; and at the bottom are the expression patterns for three different genes (genes 1, 2, and 3) at two different time points in development (early and late) , and in two different locations in the embryo (top and bottom) .
-Which of the following would most likely lead to species A looking like species B?

• A) Loss of a repressor of gene 1
• B) Loss of a repressor of gene 2
• C) Loss of a repressor of gene 3
• D) Gain of a repressor of gene 1
• E) Gain of a repressor of gene 2

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