Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 22, Problem 4TYK
Prezygotic is isolating mechanisms:
a. reduce the fitness of hybrid offspring.
b. generally prevent individuals of different species from producing zygotes.
c. are found only in animals.
d. are found only in plants.
e. are observed only in organisms that reproduce aseually.
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Students have asked these similar questions
A gene pool is
a. all of the genes in a single individual.
b. all of the genes in the gametes from a single individual.
c. all of the genes in a population of individuals.
d. the random mixing of genes during sexual reproduction.
Which of the following mechanisms are important for generating new genotypes in species that reproduce sexually?
a.
Chromosome Inversions
b.
Crossing Over
c.
Independent Assortment
d.
Both a. and b.
e.
Both b. and c.
Two parents, who are thought to be different species, mate and produce viable hybrid offspring. When two of these hybrids mate, their offspring are not viable. What is the BEST interpretation of this data?
A.
The original parents are the same species because they can breed together.
B.
The original parents are the same species because they can breed together and produce viable offspring.
C.
The original parents are not the same species because they produce hybrids that impair the species’ development or survival in its environment.
D.
The original parents are not the same species because they produce hybrids that can have reduced viability and fertility when they mate.
Chapter 22 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 22.1 - How do the morphological, biological, and...Ch. 22.1 - What is clinical variation?Ch. 22.2 - What is the difference between prezygotic and...Ch. 22.2 - Prob. 2SBCh. 22.3 - Prob. 1SBCh. 22.3 - Why might insects from different host races be...Ch. 22.4 - Prob. 1SBCh. 22.4 - Prob. 2SBCh. 22 - The biological species concept defines species on...Ch. 22 - Prob. 2TYK
Ch. 22 - A characteristic that exhibits smooth changes in...Ch. 22 - Prezygotic is isolating mechanisms: a. reduce the...Ch. 22 - In the model of allopatric speciation, the...Ch. 22 - Prob. 6TYKCh. 22 - If two species of holly (genus Ilex) flower during...Ch. 22 - Prob. 8TYKCh. 22 - An animal breeder, attempting to cross a llama...Ch. 22 - Prob. 10TYKCh. 22 - Apply Evolutionary Thinking How do human...Ch. 22 - Prob. 12TYKCh. 22 - Prob. 13TYKCh. 22 - Prob. 14TYKCh. 22 - Prob. 15TYKCh. 22 - David Hills of Baylor University noted that three...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- 3) Allopolyploidy involves a.a genetic divergence that results in nonviable offspring. b.a decrease in chromosome number within a single species. c.an increase in chromosome number following hybridization of different species. d.an increase in chromosome number within a single species.arrow_forwardAn organism that has two different alleles for a single trait is said to be for that trait. Select one: O O O a. heterologous b. heterozygous c. homozygous d. haploid e. diploidarrow_forward2) In some Drosophila species, conditions in the female reproductive tract do not allow the sperm of other species to survive long enough for fertilization to occur. What mechanism of reproductive isolation is in operation in this example? a.Temporal isolation. b.Mechanical isolation. c.Low hybrid viability. d.Gametic isolation.arrow_forward
- Of the following, which is an example of a postzygotic barrier? O Due to incompatible interactions between inherited genes, a hybrid fetus is unable to develop, and is aborted. O One species mates in spring, while another mates in summer. O A female spider of one species does not respond to the mating display of a male of a closely related species. O Cell surface proteins of one species eggs prevent sperm from another species attaching, so the sperm cannot fertilize it.arrow_forward1. Sea urchins are broadcast spawners that release clouds of sperm/eggs into the water column. However, the ability to successfully fertilize the egg by the sperm is restricted to very specific gametic proteins that inhibit cross species fertilization. This is an example of a a. Post zygotic barrier b.Habitat isolation c.Mechanical isolation d.Pre zygotic barrier e.Hybrid breakdownarrow_forwardThe biological species concept is based on the assumption that species are reproductively isolated and do not share genes. And yet a number of organisms that are considered different species hybridize (mate and exchange genes). Hybridization between different species is more common in plants than in animals. Propose some possible reasons for this difference.arrow_forward
- Which of the following is an example of postzygotic reproductive isolation?a. Sperm of species A dies in the oviduct of species B before fertilization can take place.b. Hybrid zygotes between species A and B are spontaneously aborted early indevelopment.c. The mating seasons of species A and B do not overlap.d. Males of species A are not attracted to the pheromones produced by the females ofspecies B.arrow_forwardWe learned from hermaphroditic snails in New Zealand and C. elegans that populations that are undergo both sexual and asexual reproduction in the same population can alter the frequency of outcrossing resulting in changes in genetic diversity. Identify the statement that accurately reflects a real result. a. Sexual reproduction prevents the ability of snails and worms to coevolve with their parasites. b. Sexual reproduction frequency increases in the presence of a stressor, like pathogens and parasites. c. Asexual reproduction is favored when there are pathogens and parasites in the environment. d. Asexual reproduction enables the Red Queen hypothesis to play out and enable the pathogen to win.arrow_forwardThe phenomenon of ____ results from the unequal size of the male and female gametes and the markedly different amounts of parental investment in the resulting offspring. As a result of this phenomenon, females tend to be the choosier sex in most vertebrate species. A. anisogamy B. isogamy C. isostacy D. pleiotropy E. heterogeneityarrow_forward
- Members of two separate species mate and produce hybrid offspring that fail to thrive in the environment. The hybrid genotypes do not suit the hybrid organism for survival using any given niche. Eventually, the hybrid genotypes disappear from the environment. This would be due to: A. hybrid inviability B. hybrid sterility C. gametic incompatibility D. pre-zygotic isolation E. infra-gametic disruptionarrow_forwardIn Figure 2 a diagram shows how traits are shared (or not shared) in different generations. Based on the diagram: a. A, represents a plesiomorph trait. In how many generations is A shared (symplesiomorph)? b. C represents an apomorphictrait. What generations share C (synapomorphy)? c. E is considered an autapomorphic trait. Why do you think? d. What about B and D? How do we classify them?arrow_forwardA. Direction: For each of the five examples below, give the name of the isolating mechanism and specify if it is prezygotic or postzygotic isolation. a. In some bee population, only large bees are big enough to unfold flower petals and obtain nectar and pollen. b. A cross between two fish species occurs but development only occurs up to 16-cell stage. c. In drosophila, when sperm form one species enters the other species, the sperm is immobilized and unable to fertilized egg. d. Fireflies have a unique lighting pattern. The frequency of lighting is species specific. Fireflies in the same area will not mate with those having a different lighting frequency. e. Two species of butterflies are found in northern Michigan, but one species is found only near rivers and streams, the other near lakes. B. Read analyze the statements given below. Then, justify your answer. a. A common farming practice is to breed a female horse with a male donkey. The result is a very robust animal – the mule.…arrow_forward
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