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The major organizing center of the gastrulating embryo is the A. Inner cell mass B. Primitive streak C. Oropharyngeal membrane D. Primitive node E. Paraxial mesoderm The prechordal plate &/or the anterior visceral endoderm plays an important role in regionalization of the A. Notochord B. Embryonic mesoderm C. Forebrain D. Hindbrain E. Primitive node Which Pax is/are important for formation of midbrain? A. Paxl B. Pax3 C. Pax6 D. Pax2 + Pax5 E. Pax2 + Lim-1 or each question in this section, check all correct statements (½ point each line):

The major organizing center of the gastrulating embryo is the A. Inner cell mass B. Primitive streak C. Oropharyngeal membrane D. Primitive node E. Paraxial mesoderm The prechordal plate &/or the anterior visceral endoderm plays an important role in regionalization of the A. Notochord B. Embryonic mesoderm C. Forebrain D. Hindbrain E. Primitive node Which Pax is/are important for formation of midbrain? A. Paxl B. Pax3 C. Pax6 D. Pax2 + Pax5 E. Pax2 + Lim-1 or each question in this section, check all correct statements (½ point each line):

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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### Embryology Quiz #### Multiple Choice Questions 5. The major organizing center of the gastrulating embryo is the __________. - A. Inner cell mass - B. Primitive streak - C. Oropharyngeal membrane - D. Primitive node - E. Paraxial mesoderm 6. The prechordal plate and/or the anterior visceral endoderm play an important role in regionalization of the __________. - A. Notochord - B. Embryonic mesoderm - C. Forebrain - D. Hindbrain - E. Primitive node 7. Which Pax is/are important for formation of the midbrain? - A. Pax1 - B. Pax3 - C. Pax6 - D. Pax2 + Pax5 - E. Pax2 + Lim-1 #### Check All That Apply E. For each question in this section, check all correct statements (½ point each line): 1. In mouse embryos containing 8-16 cells, the cells with apical surfaces: - _____ will adopt a trophectoderm fate (trophoblast) - _____ will become cells of the inner cell mass - _____ are polar cells - _____ will express Cdx2 - _____ will express Oct4 - _____ will form the neural tube 2. Which of the following is/are mesenchymal: - _____ Epidermal cell - _____ Neural crest cell - _____ Neural tube cell - _____ Somite cell
Transcribed Image Text:### Embryology Quiz #### Multiple Choice Questions 5. The major organizing center of the gastrulating embryo is the __________. - A. Inner cell mass - B. Primitive streak - C. Oropharyngeal membrane - D. Primitive node - E. Paraxial mesoderm 6. The prechordal plate and/or the anterior visceral endoderm play an important role in regionalization of the __________. - A. Notochord - B. Embryonic mesoderm - C. Forebrain - D. Hindbrain - E. Primitive node 7. Which Pax is/are important for formation of the midbrain? - A. Pax1 - B. Pax3 - C. Pax6 - D. Pax2 + Pax5 - E. Pax2 + Lim-1 #### Check All That Apply E. For each question in this section, check all correct statements (½ point each line): 1. In mouse embryos containing 8-16 cells, the cells with apical surfaces: - _____ will adopt a trophectoderm fate (trophoblast) - _____ will become cells of the inner cell mass - _____ are polar cells - _____ will express Cdx2 - _____ will express Oct4 - _____ will form the neural tube 2. Which of the following is/are mesenchymal: - _____ Epidermal cell - _____ Neural crest cell - _____ Neural tube cell - _____ Somite cell
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