Biology

The correct answer is: B.Transduction

Explanation:

The transduction stage of a signaling pathway involves the internal molecular events that relay and amplify the signal inside the cell. This includes processes such as:

1.Protein modification (e.g., phosphorylation)

2.Second messenger production (e.g., cAMP, IP3)

3.Amplification of the signal (e.g., enzyme cascades)

4.Phosphorylation cascades (e.g., activation of kinases)

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