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kodGreya [7K]
1 year ago
9

How do xenoturbellida relate to hemichordates and nonvertebrate chordates?

Biology
1 answer:
Pachacha [2.7K]1 year ago
6 0

The deuterostome group's gene arrangement in the mitochondrial genome of <em>Xenoturbella bocki </em>is remarkably close to that of the chordates and hemichordates and hence to the ancestor deuterostome gene order. Inversion and breakpoint studies particularly point to a similarity to the hemichordates.

Previous morphological investigations imply that Xenoturbella could be classified as a bivalve mollusc, a basal bilaterian, a turbellarian flatworm, a sister group to the echinoderms(nonvertebrate), or a hemichordate. Recent genetic analyses that focus mostly on nuclear genes appear to favour the Ambulacraria (echinoderms + hemichordates). In contrast, a basal deuterostome location is supported by mitochondrial sequences.

To learn more about hemichordates click here

brainly.com/question/17438824

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