In a chick embryo, somites are formed from
Correct answer: A. Dorsal mesoderm
- A. Dorsal mesoderm
- B. Somatic mesoderm
- C. Splanchnic mesoderm
- D. Lateral plate mesoderm
Explanation
Somites in a chick embryo arise from the paraxial mesoderm, which is a part of the dorsal mesoderm. These segmented blocks of mesoderm are critical for the development of the vertebral column, skeletal muscle, and dermis. The other options refer to different parts of the mesoderm that do not contribute to somite formation: the somatic and splanchnic mesoderm are parts of the lateral plate mesoderm, which is involved in forming the body's wall, circulatory system, and other structures.
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About Embryonic Development
Embryonic development begins after fertilization with cleavage and formation of the morula and blastula, followed by gastrulation and the establishment of germ layers. It includes organ formation, tissue differentiation and early growth, rather than the later increase in size associated with postnatal development.
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