Going back to the water

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Across
  1. 3. __________ of TRAF6 induces the activation of TAK1
  2. 6. Evolution in finger bones that helps with movement using flippers
  3. 7. Closest living non-cetacean relative of Cetacea
  4. 8. Earbone that has fused with Tympanic bone in Cetacea
  5. 9. Bony projection evolved in Cetacean ear to conduct sound
Down
  1. 1. What molecule translocates into the nucleus at the end of TLR signalling
  2. 2. What gene's loss of expression provokes the arrest of limb development in Cetacean embryos
  3. 4. Mutation in aquaporins help with __________
  4. 5. What receptor has evolved to help Cetaceans adapt to marine pathogens
  5. 6. Gene cluster involved in the modulation of digit number and morphological diversity