Question

All of the following associations of germinal tissues and developed tissue are correct except

• A. Mesoderm: heart
• B. Ectoderm: nervous system
• C. Endoderm: lining of intestinal tract
• D. Mesoderm: pancreas
• E. Ectoderm: epidermis of skin

Answer 1

Answer: (D)

Mesoderm: pancreas

• Germ layer specification in the blastula results in formation of the three germ layers: mesoderm, endoderm, and ectoderm.
• Ectoderm develops into parts of the skin, the brain and the nervous system.
• Mesoderm gives rise to bones, muscles, the heart and circulatory system, and internal sex organs.
• Endoderm turns into the inner lining of some systems, and some organs such as the liver and pancreas.
• So, the correct option is 'Mesoderm: pancreas'.