Echinoderms are classified as Bilateria and they start out as bilateral larvae, yet as they develop they change into radially symmetrical adults. Would you expect their genes controlling the development of radial symmetry to be:

A. different from those controlling development of symmetry in all other radially symmetrical animals
B. similar to genes controlling body form in Porifera
C. similar to genes controlling body form in Ctenophora
D. similar to genes controlling body form in the lophophorates
E. similar to a common set of genes controlling body form in Ctenohora, and lophophorates


A. different from those controlling development of symmetry in all other radially symmetrical animals

Biology & Microbiology

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