Geographical isolation can promote which process?
Answer and explanation
Correct answer: Speciation
Geographical isolation occurs when physical barriers such as mountains, rivers, or distance separate members of one population. Because the groups meet and interbreed less often, gene flow decreases. Different mutations, selection pressures, and random genetic changes can then accumulate in each group. Over many generations, reproductive differences may arise and produce new species. Therefore, option A is correct; the other choices are not consequences of geographical isolation.
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What is the correct answer to this question?
Speciation
Why is this the correct answer?
Geographical isolation occurs when physical barriers such as mountains, rivers, or distance separate members of one population. Because the groups meet and interbreed less often, gene flow decreases. Different mutations, selection pressures, and random genetic changes can then accumulate in each group. Over many generations, reproductive differences may arise and produce new species. Therefore, option A is correct; the other choices are not consequences of geographical isolation.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Heredity and Evolution. Topic: Evolution and speciation.
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