It is often desirable to define the root of a tree. There are two ways to define the root of a tree. One is to use an outgroup, which ______

is a sequence that is homologous to the sequences under consideration

is separated from those sequences at an early evolutionary time

is generally determined from independent sources of information

is generally determined from similar or related sources of information

It is often desirable to define the root of a tree. There are two ways

1.	It is often desirable to define the root of a tree. There are two ways to define the root of a tree. One is to use an outgroup, which ______
A.	is a sequence that is homologous to the sequences under consideration
B.	is separated from those sequences at an early evolutionary time
C.	is generally determined from independent sources of information
D.	is generally determined from similar or related sources of information
Answer» E.