The number of rooted trees (NR) for n taxa is ______ – McqOptions

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1.	The number of rooted trees (NR) for n taxa is ______
A.	NR = (2n− 3)!/2n+2 (n− 2)!
B.	NR = (2n− 3)!/2n (n− 2)!
C.	NR = (2n− 3)!/2n−2 (n− 5)!
D.	NR = (2n− 3)!/2n−2 (n− 2)!
Answer» E.

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