Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Textbook Question
Chapter 17, Problem 15SQ
Match the evolution concepts.
| ____ | gene flow | a. outcome can be interdependence |
| ____ | sexual selection | b. changes in a population’s allele frequencies due to chance alone |
| ____ | extinct | c. alleles enter or leave a population |
| ____ | genetic drift | d. adaptive traits make their bearers better at securing mates. |
| ____ | coevolution | e. no more living members |
| ____ | adaptive radiation | f. burst or divergences from one lineage into many |
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1. ____ occurs when allele frequencies change over generation due to random chance.
a. extinction
b. gene flow
c. natural selection
d. mutation
Evidence that populations change in characteristics over time includes ___.
a.
Guppies transferred from ponds with predators to ponds without predators became more brightly colored
b.
drug resistance in bacterial diseases like tuberculosis becoming more common
c.
fruit flies in jars with alcohol in the food will increase in fast alcohol dehydrogenase alleles after a few generations
d.
Cholera outbreaks became more deadly after the industrial revolution when people started to live in crowded cities
e.
all of the above are examples of evolution
In population genetics, evolution describes how ____ change from onegeneration to the next.a. individuals c. phenotype frequenciesb. allele frequencies d. communities
Chapter 17 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 17 - Prob. 1DAACh. 17 - Prob. 2DAACh. 17 - Prob. 3DAACh. 17 - Prob. 4DAACh. 17 - Prob. 1SQCh. 17 - A neutral mutation _______ . a. has a pH of 7.0 b....Ch. 17 - Change in allele frequency of a population is...Ch. 17 - A wild population of pea plants has two alleles...Ch. 17 - Which of the following is not part of how we...Ch. 17 - Prob. 6SQ
Ch. 17 - The persistence of sickle-cell anemia in a...Ch. 17 - ___ tends to keep populations of a species similar...Ch. 17 - Which is required for a population to evolve? a....Ch. 17 - Prob. 10SQCh. 17 - After fire devastates all of the trees in a wide...Ch. 17 - True or false? Inbreeding can increase the...Ch. 17 - The difference between sympatric and parapatric...Ch. 17 - Prob. 14SQCh. 17 - Match the evolution concepts. ____ gene flow a....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. 4CTCh. 17 - About 70 percent of flowering plants are...
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- If a populations allele and genotype frequencies remain constant from generation to generation, (a) the population is undergoing evolutionary change (b) the population is said to be at genetic equilibrium (c) microevolution has taken place (d) directional selection is occurring, but only for a few generations (e) genetic drift is a significant evolutionary forcearrow_forwardwhich of these is not a central rule of natural selection a, fitness to the general health and strength of an organism b, natural selection can only act on traits that affect reproduction c, natural selection can't occur without population variation d, a trait must be inherited if natural selection is to act on itarrow_forward_________ increases the similarities between the gene pools of two populations. A. natural selection B. genetic drift C. mutation D. gene flow E. population bottleneckarrow_forward
- In what situation would the allele frequency of a population NOT change? A. when individuals move into or out of an environment B. when there is no evolution C. when mutations create new alleles D. when individuals choose their mates P3-2022 International Academy of Science. All Rights Reserved. O H 4+ 144 88°F Mostly sunny 441 12 +arrow_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_forwardPopulation A varies from population B. A toxonomist should designate them as separate species if _________. A. They are geographically isolated B. They differ in appearance C. They do not interbreed when the opportunity arises D. Gene flow has been observed E. All of these are correctarrow_forward
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