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).
-The additional segment in species B and E is most likely associated with which process?
A) Changes in the timing of gene expression
B) Changes in the location of gene expression
C) Phenotypic plasticity
D) Both a and c
E) Both b and c

Question

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). 
-The additional segment in species B and E is most likely associated with which process?
A) Changes in the timing of gene expression 
B) Changes in the location of gene expression 
C) Phenotypic plasticity 
D) Both a and c 
E) Both b and c

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The Answer of 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). 
-The additional segment in species B and E is most likely associated with which process?
A) Changes in the timing of gene expression 
B) Changes in the location of gene expression 
C) Phenotypic plasticity 
D) Both a and c 
E) Both b and c

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