Suppose that a gene originally identified in nematodes (roundworms) is found to be homologous with a gene that can cause developmental abnormalities in humans. Would it be possible to study this same gene in fruit flies? Explain.

That statement point out that the gene is homologous. Homologous gene are evolved from common ancestor.So this gene can found in the ancestral population of both protostomes and deuterostomes.

Explanation:

Evolutionary relationship of three animal species (human,nematode and fruit fly) are closely related.The gene sequence of human and fruits fly are closely related than nematodes.There are 100 common genes among these three species.so it is possible to genetic study among them..

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.v