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storchak [24]
3 years ago
15

Need answer now!! Please help

Biology
1 answer:
umka2103 [35]3 years ago
5 0
<h2>Answer:</h2>

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.
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