LI - II HIII X H

Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN:9781337408332
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Chapter15: Studying And Manipulating Genomes
Section: Chapter Questions
Problem 5SQ: A set of cells that host various DNA fragments collectively representing an organisms entire set of...
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Shown above are three possible phylogenetic trees for species I, II and III reconstructed based on the 4-nucleotide DNA sequences given in the righthand table. In every tree, each hatchmark on a branch represents a single base-change event. The most parsimonious tree would be  -

A. Both X and Y.
B. X.
C. Y.
D. Both Y and Z.
E. Z.

 

II
HIII
X
I
III
HIII
Y
{
III
HII
HII
Z
Species I
Species II
Species III
Ancestral sequence
Site
1
2 3
C
T
A
C
T
T
AG
A
A G T
4
T
C
C
T
Transcribed Image Text:II HIII X I III HIII Y { III HII HII Z Species I Species II Species III Ancestral sequence Site 1 2 3 C T A C T T AG A A G T 4 T C C T
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