Chapter 17 Key Terms

• p. 375: blastomeres, cleavage, animal pole, vegetal pole, blastula, gastrula, gastrulation, germ layers, endoderm, ectoderm, mesoderm
  
• p. 376: neural tube, neurulation, neural crest, somites, larva, metamorphosis
  
• p. 378: syncytial blastoderm, instars, imaginal disks, meristems, suspensor, epidermal cells, ground tissue, vascular tissue, cotyledons
  
• p. 381: determinants, mosaic development, regulative development, induction, organizers, morphogen
  
• p. 382: totipotent, chimera, determination
  
• p. 383: differentiation, positional labels
  
• p. 384: bicoid, gap genes, nanos
  
• p. 386: pair-rule genes, segment polarity genes, homeotic genes, bithorax complex
  
• p. 387: antennapedia complex, homeobox
  
• p. 388: necrosis, apoptosis
  
• p. 389: antioxidants