Question

9. Examine the phylogenies shown below. Which one is more likely to represent the true evolutionary history of this group, given the information provided? Explain your answer, being sure to state the criterion that you are using to make this decision. (a) Whale + hippo 162 166 177 T G C C$\to$T T G C T$\to$G C$\to$T T C T G$\to$C T C T C G T C$\to$T C G T T$\to$A C A C C T C Out (b) Whale + artiodactyl T G C C$\to$T T G C T$\to$G C$\to$T T C T G$\to$C C$\to$T C G T C G T T$\to$A C A C C$\to$T T C T T$\to$C C T C Out Time$\to$

          9. Examine the phylogenies shown below. Which one is more likely to represent the true evolutionary
history of this group, given the information provided? Explain your answer, being sure to state the
criterion that you are using to make this decision.
(a) Whale + hippo
162 166 177
T G C
C$\to$T
T G C
T$\to$G
C$\to$T
T C T
G$\to$C
T C T
C G T
C$\to$T
C G T
T$\to$A
C A C
C T C Out
(b) Whale + artiodactyl
T G C
C$\to$T
T G C
T$\to$G
C$\to$T
T C T
G$\to$C
C$\to$T
C G T
C G T
T$\to$A
C A C
C$\to$T
T C T
T$\to$C
C T C Out
Time$\to$

9. Examine the phylogenies shown below. Which one is more likely to represent the true evolutionary
history of this group, given the information provided? Explain your answer, being sure to state the
criterion that you are using to make this decision.
(a) Whale + hippo
162 166 177
T G C
C→T
T G C
T→G
C→T
T C T
G→C
T C T
C G T
C→T
C G T
T→A
C A C
C T C Out
(b) Whale + artiodactyl
T G C
C→T
T G C
T→G
C→T
T C T
G→C
C→T
C G T
C G T
T→A
C A C
C→T
T C T
T→C
C T C Out
Time→

Added by Pamela R.

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