Answer -interact with the antigen-class ii mhc complex presented by macrophages.
It would be A.Evaporation and Condensation
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Answer:
When both _signal molecules_ are in their receptor sites, the molecules form a dimer (two molecules joined together). ATP is converted to ADP and the _phosphate group_ gets attached to the tyrosine molecules. The addition of the _ relay proteins_ causes a cascade of cellular responses.
Explanation:
I have added explanation as image form so it will help you understand more easily.
Answer:
They are all related to cells
Explanation:
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