Signalling between cells usually results in activation of protein by
A
Kinases
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B
Proteases
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C
Lipases
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D
Nucleases
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Solution
The correct option is A Kinases
Signalling is the communication between cells by means of signalling molecules. When a ligand binds to its receptor, ligand-receptor complex is formed which activate protein kinases. Kinases are the enzymes that transfer phosphate group to the target cells. Phosphorylation of target cells cause different changes in the cell.