CAMPBELL BIOLOGY IN FOCUS-MOD.MASTERING
3rd Edition
ISBN: 9780135191811
Author: Urry
Publisher: PEARSON
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Chapter 20, Problem 8TYU
SCIENTIFIC INQUIRY
DRAW IT (a) Draw a phylogenetic tree based on characters 1- 5 1n the table below. Place hatch marks on the tree to md1cate the origin(s) of characters 1-6. (b) Assume that tuna and dolphins are sister species, and redraw the phylogenetic tree accordingly. Use hatch marks to indicate the origin(s) of characters 1–6. (c) How· many evolutionary changes are required in each tree? Which tree is most parsimonious?
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To apply parsimony to constructing a phylogenetic tree, (A) choose the tree that assumes all evolutionary changes are equally probable. (B) choose the tree in which the branch points are based on as many shared derived characters as possible. (C) choose the tree that represents the fewest evolutionary changes,in either DNA sequences or morphology. (D) choose the tree with the fewest branch points.
1.
(a) inferred phylogeny of a set of DNA sequences
Molecular phylogenetics
Molecular evolution
Molecular clock
Evolutionary Signatures
(b) derives its power from the distinctive evolutionary patterns
Molecular phylogenetics
Molecular evolution
Molecular clock
Evolutionary Signatures
The phylogenetic tree to the right showsthe evolutionary relationships of taxa A –H. The shapes represent character statetrait changes.
A. Which traits (shapes) would individualsin taxa D have? Draw the collection oftraits.
B. Is the triangle a synapomorphy orpleisomorphy (circle one)?
C. Is the circle a synapomorphy orsympleisomorphy (circle one)?
Chapter 20 Solutions
CAMPBELL BIOLOGY IN FOCUS-MOD.MASTERING
Ch. 20.1 - Based on the tree in Figure 20.4, are leopards...Ch. 20.1 - Which of the trees shown here depicts an...Ch. 20.1 - Prob. 3CCCh. 20.2 - Decide whether each of the following pairs of...Ch. 20.2 - WHAT IF? Suppose that two species, A and B, have...Ch. 20.3 - Prob. 1CCCh. 20.3 - The most parsimonious tree of evolutionary...Ch. 20.3 - Prob. 3CCCh. 20.4 - What is a molecular clock? What assumption...Ch. 20.4 - MAKE CONNECTIONS Review Concept 14.5. Then...
Ch. 20.4 - WHAT IF? Suppose a molecular clock dates the...Ch. 20.5 - Why is the kingdom Monera no longer considered a...Ch. 20.5 - Prob. 2CCCh. 20.5 - Prob. 3CCCh. 20 - In a comparison of birds and mammals, the...Ch. 20 - To apply parsimony to constructing a phylogenetic...Ch. 20 - Prob. 3TYUCh. 20 - Prob. 4TYUCh. 20 - Prob. 5TYUCh. 20 - If you were using cladistics to build a...Ch. 20 - Prob. 7TYUCh. 20 - SCIENTIFIC INQUIRY DRAW IT (a) Draw a phylogenetic...Ch. 20 - FOCUS ON EVOLUTION Darwin suggested looking at a...Ch. 20 - Prob. 10TYUCh. 20 - SYNTHESIZE YOUR KNOWLEDGE This West Indian manatee...
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