Where in an embryo are the instructions on how build organs?

Which glands produce insulin? What color are bum holes? What blood type can produce blood O? Why are the sequences of the DNA nucleotides so important? Why does cloning cost so much money? What does stoma allow to enter the leaf? What is jumping DNA? What nucleic acid translates the genetic code that is contained within a cell RNA or DNA? What forms the embryonic skeleton? 5 operations conducted by the cell factory? Is a guitar a living thing? In a heterozygous IA i person which allele is dominant IA or i? In what Phase of mitosis do the chromosomes return to a chromatin state? Explain why cucumber slices spring water when salt is added to it in terms of osmosis? What did the kiowas hunt? Why does heartburn burn the esophagus but not the stomach? Is urea a product of fatty acid metabolism? What is the difference in genome between prokaryotic and eukaryotic cells? What will happen if cork is not formed in older stems and roots? What is the purpose of the kulekhara's leaves?

Where in an embryo are the instructions on how build organs?