Which of the following produces hybrids such as mules?Group of answer choicespremating isolating mechanismsepigeneticsasexual reproductionpostmating isolating mechanisms
Question
Which of the following produces hybrids such as mules?Group of answer choicespremating isolating mechanismsepigeneticsasexual reproductionpostmating isolating mechanisms
Solution
The production of hybrids such as mules is a result of postmating isolating mechanisms.
Here's a step-by-step explanation:
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Postmating isolating mechanisms are biological features or processes that prevent species from interbreeding, even after mating has occurred.
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These mechanisms can be genetic, ecological, behavioral, or physiological. They are essential for maintaining the distinctiveness of closely related species that live in the same area.
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A mule is a classic example of a hybrid produced by postmating isolating mechanisms. Mules are the offspring of a male donkey and a female horse.
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Although mules are generally healthy and robust, they are almost always sterile due to differences in the number of chromosomes between horses and donkeys. This sterility is a postmating isolating mechanism that prevents gene flow between the two species.
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Therefore, the production of hybrids such as mules is not a result of premating isolating mechanisms, epigenetics, or asexual reproduction.
Similar Questions
Which is left unexplained by the biological species concept, thereby weakening the concept?Multiple choice question.The existence of viable, but sterile hybrids (such as the mule)Hybridization in natural settingsHybridization in captivity
The mule is the result of the interbreeding of two separate species. Mules cannot form fertile, viable offspring with horses, donkeys, or mules. The mule is therefore an example of which of the following?Multiple choice question.A species that originated because of an autopolyploid event in the horseA hybrid species that can produce viable offspringA new species that originated through hybridizationA species that evolved allopatrically to the horseA sterile hybrid
Mules are sterile and are the result of crossing a horse with a donkey. This is an example of:Group of answer choiceslow hybrid zygote viabilitylow hybrid adult viabilityhybrid zonegametic isolationhybrid infertility
If biological species are defined in terms of reproductive compatibility, which of the following factors determines the formation of a new species? Group of answer choicesgene flowgene flow expansionhybrid formationreproductive isolation
Which of the following is the process in which traits that increase prezygotic isolation between two differentiated populations are favored due to natural selection against the production of unfit hybrids?Multiple choice question.EvolutionFertilizationMutationReinforcement
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