Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Chapter 29.1, Problem 4COMQ
Summary Introduction
Introduction:
The development of a new species from a preexisting species due to evolution is known as
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Which of the following may be true of two species that are a result of allopatric speciation? Select all that apply.
a
They will be genotypically similar.
b
They will be phenotypically similar.
c
They can produce viable offspring.
d
They will be geographically isolated.
Which of the following is a good description of Sympatric speciation?
A. Speciation without geographic isolation
B. Changes in sequence of DNA of an organism
C. Speciation due to geographical isolation
D. The change in the genetic characteristics of a population of organisms over time
Which of the following would result in allopatric speciation by dispersal?
A. A river separating a previously contiguous population of salamanders
B. A receding water table separating a population of frogs into two separate wetlands
C. Finches colonizing an island exposed by water level changes in a reservoir
D. A population of trees being split in two by an advancing glacier
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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- Speciation can occur when two populations of a species become separated from each other. What is the best explanation for why speciation occurs?arrow_forwardThe first step leading to allopatric speciation is (a) hybrid inviability (b) hybrid breakdown (c) adaptive radiation (d) geographic isolation (e) paedomorphosisarrow_forwardA physical barrier separates a single species, causing two separate populations to form. Over time these two populations adapt to their environments. Eventually, these two populations are no longer able to successfully reproduce with each other. This is known as __________. A. Sympatric speciation B. Allopatric speciation C. Autopatric speciation D. Parapatric speciationarrow_forward
- Which of the following is least likely to be a process associated with sympatric speciation? A.) specialization on different food resources B.) specialization on different habitats C.) mutations that cause differences in pheromones D.) mutations that cause changes in ploidyarrow_forwardIncreases in species diversity arise because of A)increases in the rate of speciation. B)decreases in the rate of extinction. C)higher rates of speciation than extinction. D)All of the above The rates of extinction since the origin of life have followed which pattern? A)Gradual decrease B)Gradual increase C)No change D)Several episodes of mass extinctions, with much lower rates of fluctuating extinctions in between Which of the following statements about the outcome of the evolution of a new species through hybridization is false? A)The new species is always an intermediate of the two parent species. B)The new species may have traits that allow it to inhabit environments different from both parental species. C)The new species may have greater genetic diversity and therefore greater trait diversity than the parental species. D)All of the above How can ecological processes influence the evolution of a population? A)Ecological…arrow_forwardThe first step leading to allopatric speciation is (a) hybrid inviability(b) hybrid breakdown (c) adaptive radiation(d) geographic isolation (e)paedomorphosisarrow_forward
- If reinforcement is weak and hybrids are not completely infertile, a. genetic divergence between populations may be overcome by gene flow. b. speciation will occur 100% of the time. c. gene flow between populations will be impossible. d. the speciation will be more likely than if hybrids were completely infertile.arrow_forwardWhen two populations are reproductively isolated, what else must occur for speciation to happen? (a) gene flow (b) genetic divergence (c) coevolution (d) convergent evolution (e) none of the abovearrow_forwardThe goldenrod gall fly mates and lays its eggs on the goldenrod plant and the larva live inside the plant. When a new species of goldenrod (goldenrod B) moves into the range of the fly some of the flies move to goldenrod B. How does this process allow for sympatric speciation of the flies? Group of answer choices A. the two plants have different chromosome numbers B. the flies only reproduce on their host plant C. hybrids are always more successful than either type of fly D. a predator keeps the two types of flies separated E. the two plants occur in different geographic areasarrow_forward
- The type of speciation that takes place in geographically overlapping populations is known as ________________________. A. Allopatric speciation B. Sympatric speciation C. Morphological speciation D. Physiological speciationarrow_forwardWhich of the following factors would not contribute toallopatric speciation?(A) The separated population is small, and genetic drift occurs.(B) The isolated population is exposed to different selectionpressures than the ancestral population.(C) Different mutations begin to distinguish the gene pools ofthe separated populations.(D) Gene flow between the two populations is extensive.arrow_forwardWhich of the following could result in allopatric speciation? A. Two populations of a species are separated by a river that they are unable to cross. B. Two populations of a species are separated by a field that is too dry during the summertime. C. One group within a population mates during the evenings and another during the mornings. D. One group within a population develops a new mating ritual that is not recognized by the other.arrow_forward
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