If You Know That the Hox Gene AbdB Is Expressed

question 5

Multiple Choice

If you know that the Hox gene AbdB is expressed in the most posterior part of the abdomen in a Drosophila embryo,which conclusion about a homologous gene in humans would most likely be correct?

• A) There is no homologous gene in humans,because the evolutionary distance between humans and flies is so great.
• B) The homologous gene in humans is expressed only in adults,not in human embryos.
• C) The homologous gene is expressed in the head of human embryos.
• D) The homologous gene is expressed throughout the human embryo in roughly equal amounts.
• E) The homologous gene is expressed near the rump of the human embryo.

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