The number of ligand binding sites present on receptors R1 and R3, res

1.	The number of ligand binding sites present on receptors R1 and R3, respectively are
A.	1 and 4
B.	1 and 1
C.	4 and 1
D.	2 and 2
Answer» E.

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The number of ligand binding sites present on receptors R1 and R3, respectively are

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