MindTap Biology, 1 term (6 months) Printed Access Card for Starr/Taggart/Evers/Starr's Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305269842
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 17, Problem 12SQ
Match the evolution concepts.
| ____ gene flow | a. can lead to interdependent species |
| ____ sexual selection | b. changes in a population’s allele frequencies due to chance alone |
| ____ mutation | c. alleles enter or leave a population |
| ____ genetic drift | d. adaptive traits make their bearers better at securing mates |
| ____ coevolution | e. original source of new alleles |
| ____ adaptive radiation | f. burst of divergences from one lineage into many |
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Speciation:
A.
is a process by which populations of one species diverge genetically and which produces one or more new species
B.
is the result of minor extinction events
C.
only results from interspecific hybridization
D.
is completed when two different species are able to interbreed
E.
always takes millions of years
Even though Hardy and Weinburg showed that the process of random reproduction will not alter gene frequency in a population over time, in wild populations we observe that gene frequencies do change overtime so what has happened?
A) sexual selection
B) Evolution due to sexual selection
C) none of these
D) any of these
E) Evolution due to genetic drift
If gene flow between two populations stops, which of the following could occur given enough time?
a.
speciation
b.
the population each gain unique alleles
c.
the timing of reproduction changes ending their ability to interbreed
d.
frequencies of alleles shift in different ways
e.
these are all things that could occur if gene flow between two populations of one species ended, given enough time
Chapter 17 Solutions
MindTap Biology, 1 term (6 months) Printed Access Card for Starr/Taggart/Evers/Starr's Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 17 - ___ is the original source of new alleles. a....Ch. 17 - Which is required for evolution to occur in a...Ch. 17 - Prob. 3SQCh. 17 - Prob. 4SQCh. 17 - The persistence of sickle-cell anemia in a...Ch. 17 - ___ tends to keep populations of a species similar...Ch. 17 - The theory of natural selection does not explain...Ch. 17 - Prob. 1DAACh. 17 - Prob. 2DAACh. 17 - Prob. 3DAA
Ch. 17 - Prob. 4DAACh. 17 - Which of the following is not part of how we...Ch. 17 - Sex in many birds is typically preceded by an...Ch. 17 - The difference between sympatric and parapatric...Ch. 17 - A fire devastates all trees in a wide swath of...Ch. 17 - Match the evolution concepts. ____ gene flow a....Ch. 17 - Change in allele frequency of a population is...Ch. 17 - Species have traditionally been characterized as...Ch. 17 - Rama the cama, a llama-camel hybrid, was born in...Ch. 17 - Two species or antelope, one from Africa, the...Ch. 17 - Prob. 4CT
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- Mutation (a) leads to adaptive evolutionary change (b) adds to the genetic variation of a population (c) is the result of genetic drift (d) almost always benefits the organism (e) a and barrow_forwardgentic drift is A. genetic change in an indivdual's lifetime b genetic change over time c. The change in genetic composition of populations over time d. Evolution that happens on a indvidualarrow_forwardChoose the best below ? The northern elephant seal went through a severe population declineas a result of hunting in the late 1800s. As a result of a hunting ban,the population has rebounded but is now homozygous for nearlyevery gene studied. a. mutationb. natural selectionc. founder effectd. bottlenecke. gene flowf. nonrandom matingarrow_forward
- For natural selection to occur, there must be competition for resources, competition for survival, or 15) different reproductive success. Why is this so? A) Without competition, there is no pressure to mutate.B) The struggle of competition makes individuals stronger.C) Natural selection acts on the different abilities of individuals to survive and pass on their genes to the next generation.D) Populations evolve to preserve the species and don't change unless they must. Then explain why the answer is correct and why the others one are inccorect.arrow_forwardDue to its ability to camouflage itself from predators, the White Peppered Moth of England was once much more abundant than the Black Peppered Moth. As the Industrial Revolution hit, factories began to release black soot which coated everything, including tree bark. Because the moths’ habitat was now darker, the white moth became much more susceptible to predators. At the same time, the Black Peppered Moth was now more protected and began to increase in number.This story is an example of A. natural selection. B. extinction. C. endangered species. D. mutation.arrow_forwardIf a polymorphism is found at a low frequency globally, but has a high frequency in a particular population, this indicates that: A. natural selection has shaped the distribution of that trait. B. it may have been caused by genetic drift. C. a lack of gene flow affected its distribution. D. All of the above. E. None of the above..arrow_forward
- Which evolutionary process is most responsible for the increased occurrence of tusklessness in female elephants in Gorongosa National Park? a)Sexual selection b)Mutation c)Natural selection d)Genetic drift Im thinking either b or c but im not sure mabye c but im not really sure about the whole thingarrow_forwardWhich of the following DOES NOT alter a [population’s genetic composition? a. random mating b. natural selectionc. Inbreedingd. Gene flow from migration e. Genetic driftarrow_forwardWhich of the following is an example of Genetic drift? A. Red flowers with AA genotype evolve after a windstorm B. snakes that evolved to resisit toxins C. None of the above D. Finch beak shape change over time during droughtarrow_forward
- 1. ____ occurs when allele frequencies change over generation due to random chance. a. extinction b. gene flow c. natural selection d. mutationarrow_forwardWhich is NOT an example of a population bottleneck: A) The Cretaceous-Paleogene extinction event B) Human activies that produce antibiotic resistant straings (i.e. choosing not to take the full does of prescribed antibiotics) C) The Amish in the United States who, due to inbreeding, are at higher risk for genetic diseases D) All of the above are examples of a population bottleneckarrow_forwardEvolution that results because certain genotypes have a higher reproductive success is based on a. genetic variation. c. genetic drift. b. natural selection. d. both a and b.arrow_forward
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Mechanisms of Genetic Change or Evolution; Author: Scientist Cindy;https://www.youtube.com/watch?v=5FE8WvGzS4Q;License: Standard Youtube License