Which of the following in NOT TRUE of Hox genes? The linear order of the genes a

Question

Which of the following in NOT TRUE of Hox genes? The linear order of the genes along the chromosome is reflected in the expression of the genes along the anterior posterior axis of the animal Duplication of Hox genes first occurs in poriferans and provided genetic material free to evolve more complex Kinds of animal They play a role in shaping individual organs and limbs All are true! The rapid evolution of many new animal groups during the Cambrian Explosion $40 millioi Y of coevolution convergent evolution sympalric speciation punctuated equilibrium gradualism Several different classes make up a kingdom phylum family. genus. The similarity of bone structure in the homology gradualism convergent evolution forelimbs of many vertebrates is an example of analogy

Explanation / Answer

33. B . Duplication of Hox genes first occurs in poriferans and provided genetic material free to evolve more complex kinds of animals (sponges do not have homeobox genes that suggests that duplication occurred before the dive4gence of the parazoa)

34. D Punctuated equilibrium

35. B Phylum ( e.g.classes of vertebrates mammals, birds, fish, reptiles, amphibians are part of phylum chordata)

36. Homology (indicates common ancestory)

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