Which of the following process occurs first in embryo?
A
Neurogenesis
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B
Notogenesis
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C
Hepatogenesis
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D
Cardiogenesis
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Solution
The correct option is B Neurogenesis During gastrulation, the morphogenetic movements take place. These morphogenetic movements leads to the formation of ectoderm. The ectoderm is the outermost germ layer. It invaginates on the inside and gives rise to the neural tube and thus the process of neurogenesis takes place first.