Which of the following observations is NOT consistent with the hypothesis that increasing metazoan complexity is associated with an increase in the number of Hox loci?

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Phyla that branch off early, such as sponges and cnidarians, have simple body plans with relatively few Hox loci.

Within phyla, there is no correspondence between the number of Hox genes and complexity

Hox loci are similar in structure and DNA sequence and are grouped in clusters. Hence, they are assumed to have arisen through duplication. When a new Hox gene appears within a lineage, most of the descendant taxa have a homologous Hoxlocus.

In vertebrates, the Hox clusters themselves appear to be duplicated several times.

 

asked Dec 28, 2012 in Biology by anonymous
    

1 Answer

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Within phyla, there is no correspondence between the number of Hoxgenes and complexity

 

answered Dec 28, 2012 by anonymous

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