early dev2

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Across
  1. 3. term for division of cells in the early embryo
  2. 4. 16- to 64-cell stage, looks like a mulberry
  3. 5. protein that suppresses caudal protein translation
  4. 9. avian egg type
  5. 11. epidermal tissue induced by this signaling molecule family (acronym)
  6. 14. BMP inhibitor
  7. 19. gene needed for head formation
  8. 21. major structural characteristic of amniote gastrulation (2 words)
  9. 25. formed by infolding of ventral mesoderm cells (2 words)
  10. 26. protein that localizes β-catenin to future dorsal surface
  11. 27. blastomeres form a compact ball of cells
  12. 28. initiate Xenopus blastopore involution (2 words)
  13. 29. point where cell division slows and embryo genes are expressed (acronym)
  14. 30. plays an essential role in patterning the vertebrate embryo
  15. 33. central cavity in a ball of cells
  16. 34. transcription factor central to development, activated by Wnt pathway
  17. 37. balancing organs, modified wings
  18. 38. multinucleate cell produced by mitosis without cytokinesis
  19. 39. cells located here involute into embryo (acronym)
Down
  1. 1. ____ genes are expressed in broad overlapping domains
  2. 2. transcription factor that expresses eomesodermin
  3. 3. production of a blastocoel in mammalian morula
  4. 6. female germ cell
  5. 7. responsible for anterior-posterior patterning, along with FGFs and RA (acronym)
  6. 8. cleavage-stage cells
  7. 10. cells that will form the notochord
  8. 12. embryonic segments
  9. 13. protein that dorsalizes Drosophila embyro
  10. 15. maternal effect gene expressed in anterior of Drosophila embryo
  11. 16. _____ membranes separate from the embryo that enable it to survive in the egg or uterus
  12. 17. derived from external cells in mammalian cleavage
  13. 18. embryo forms only from this layer of cells
  14. 20. process that forms embryonic germ layers
  15. 22. transcription factor needed for organizer protein expression
  16. 23. a narrow tunnel in the eggshell for fertilization
  17. 24. site where amphibian gastrulation starts (2 words)
  18. 31. ventral cells that will form the trunk of the Drosophila embryo (2 words)
  19. 32. nuclei and surrounding cytoplasm before cellularization
  20. 35. binds to Dorsal
  21. 36. receptor for gurken