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Need answer now!! Please help

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User Pradit
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Answer:

The correct arrangement of steps that occur in producing neuron cells.

The steps are from 1 to 4 according to arrangement.

  1. Genes that lead to the production of undifferentiated precursor neurons are activated.
  2. Stem cell arise from the inner mass of cells.
  3. Signalling factors trigger differentiation in stem cells.
  4. Signalling factors causes precursor neurons to produce neurons.
User Ironsand
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