Development of an animal is controlled by the genes that are expressed during development. What roles have been proposed for Hox genes in the evolution and morphology of animal species?   Group of answer choices 1. Variation in the Hox genes may have spawned the

Biology: The Dynamic Science (MindTap Course List)
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Chapter32: Deuterostomes: Vertebrates And Their Closest Relatives
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Development of an animal is controlled by the genes that are expressed during development. What roles have been proposed for Hox genes in the evolution and morphology of animal species?

 

Group of answer choices
1. Variation in the Hox genes may have spawned the formation of many new body plans.
2. All of these descriptions are correct.
3. The number and arrangement of Hox genes varies among different types of animals.
4. Increases in the number of Hox genes may have led to greater complexity in body structure.
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