Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Chapter 29, Problem 22CONQ
Summary Introduction
To review:
Types of similarity and difference in karyotypes that are closely related to evolution.
Introduction:
An autosome or chromosome is a highly coiled structure of deoxyribonucleic acid and protein that present in the nucleus of the cell of the animal. A single piece of coiled DNA, ordeoxyribonucleic acid, consists of many genes, regulatory elements, and other
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You become interested in monarch butterfly conservation and begin investigating milkweeds
(genus Asclepias), their larval host plant. You decide to construct a phylogeny for Illinois
milkweed species based on DNA sequence data. You sequence a chloroplast gene from five
species, as shown in the table below. For your outgroup, you sequence Tropical milkweed, a
species that is more distantly related to the other species. Using parsimony, construct the tree that
requires the fewest number of mutations. Starting with your inferred ancestral sequence, mark
each mutation and its sequence position on your tree.
Hints: Assume the outgroup sequence is the ancestral sequence. Focus on the shared mutations
(synapomorphies). Sites that do not vary among species are not useful for phylogenetics and can
be ignored. Mutations that only occur in one species (autapomorphies) should be marked on the
tree but do not help in constructing the tree.
Table 1. Sequence 175-186 in chloroplast trnL/F gene…
What is the phylogenetic definition of a species?
A) A group of individuals that can breed and produce viable offspring
B) A group of interbreeding individuals that share the same environment
C) A group of individuals that share a common ancestor
What is the biological definition of a species?
A) A group of individuals that can breed and produce viable offspring
B) A group of interbreeding individuals that share the same environment
C) A group of individuals that share a common ancestor
Chapter 29 Solutions
Genetics: Analysis and Principles
Ch. 29.1 - Prob. 1COMQCh. 29.1 - Prob. 2COMQCh. 29.1 - 3. A pair of birds flies to a deserted island and...Ch. 29.1 - Prob. 4COMQCh. 29.2 - 1. Phylogenetic trees are based on
a. natural...Ch. 29.2 - Prob. 2COMQCh. 29.2 - An approach that is used to construct a...Ch. 29.2 - 4. Horizontal gene transfer is a process in which...Ch. 29.3 - Prob. 1COMQCh. 29.3 - Prob. 2COMQ
Ch. 29.3 - When the chromosomes of closely related species...Ch. 29 - 1. Discuss the two principles on which evolution...Ch. 29 - 2. Evolution, which involves genetic changes in a...Ch. 29 - Prob. 3CONQCh. 29 - Prob. 4CONQCh. 29 - 5. Would each of the following examples of...Ch. 29 - Distinguish between anagenesis and cladogenesis....Ch. 29 - 7. Describe three or more genetic mechanisms that...Ch. 29 - Explain the type of speciation (allopatric,...Ch. 29 - Prob. 9CONQCh. 29 - Prob. 10CONQCh. 29 - Discuss the major differences among allopatric,...Ch. 29 - Prob. 12CONQCh. 29 - Prob. 13CONQCh. 29 - Would the rate of deleterious or beneficial...Ch. 29 - 15. Which would you expect to exhibit a faster...Ch. 29 - Prob. 16CONQCh. 29 - 17. Plant seeds contain storage proteins that are...Ch. 29 - Take a look at the -globin and -globin amino acid...Ch. 29 - Compare and contrast the neutral theory of...Ch. 29 - Prob. 20CONQCh. 29 - 21. As discussed in Chapter 27, genetic variation...Ch. 29 - Prob. 22CONQCh. 29 - Two populations of snakes are separated by a...Ch. 29 - 2. Sympatric speciation by allotetraploidy has...Ch. 29 - 3. Two diploid species of closely related frogs,...Ch. 29 - A researcher sequenced a portion of a bacterial...Ch. 29 - F1hybrids between two species of cotton,Gossypium...Ch. 29 - 6. A species of antelope has 20 chromosomes per...Ch. 29 - Prob. 7EQCh. 29 - 8. Prehistoric specimens often contain minute...Ch. 29 - From the results of the experiment of Figure...Ch. 29 - InChapter 23, a technique called fluorescence in...Ch. 29 - Prob. 11EQCh. 29 - 12. Discuss how the principle of parsimony can be...Ch. 29 - 13. A homologous DNA region, which was 20,000 bp...Ch. 29 - Prob. 14EQCh. 29 - Prob. 1QSDCCh. 29 - 2. Compare the forms of speciation that are slow...Ch. 29 - 3. Do you think that Darwin would object to the...
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