In which situation is formation of a new species most likely?
Answer and explanation
Correct answer: Separated populations failing to reproduce with each other after a long time
The governing concept is speciation through isolation. When populations remain separated for a long period, mutations, recombination, drift, and selection can produce differences between them. If reproductive isolation develops, members can no longer exchange genes successfully, allowing the populations to become separate species. Thus option A is correct. Frequent mixing prevents divergence, identical food is not sufficient by itself, and an individual injury is not a mechanism of speciation.
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What is the correct answer to this question?
Separated populations failing to reproduce with each other after a long time
Why is this the correct answer?
The governing concept is speciation through isolation. When populations remain separated for a long period, mutations, recombination, drift, and selection can produce differences between them. If reproductive isolation develops, members can no longer exchange genes successfully, allowing the populations to become separate species. Thus option A is correct. Frequent mixing prevents divergence, identical food is not sufficient by itself, and an individual injury is not a mechanism of speciation.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Heredity and Evolution.
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