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Process of species formation in which a ...

Process of species formation in which a segment of population within the parent population becomes gentically isolated through polyploidy and is therefore unable to interbreed with the same is known is

A

Allopatric speciation

B

Phyletic speciation

C

Sympatric speciation

D

Fusion speciation

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding the Question**: The question asks about a specific process of species formation where a segment of a population becomes genetically isolated due to polyploidy, making it unable to interbreed with the parent population. 2. **Identifying Key Terms**: - **Genetic Isolation**: This refers to a situation where two populations cannot interbreed due to genetic differences. - **Polyploidy**: This is a condition in which an organism has more than two complete sets of chromosomes, which can lead to reproductive isolation. 3. **Analyzing Options**: - **Allopatric Speciation**: This involves geographical isolation, which is not the case here since the question specifies genetic isolation through polyploidy. - **Phylactic Speciation**: This refers to one species transforming into another over time, which does not match the description in the question. - **Sympatric Speciation**: This occurs when a segment of a population becomes genetically isolated while still living in the same geographical area, often due to factors like polyploidy. - **Fusion Speciation**: This is not a recognized form of speciation and can be ruled out. 4. **Conclusion**: Given the definitions and the context of the question, the correct answer is **sympatric speciation**. This is the process where a segment of a population becomes genetically isolated due to polyploidy and cannot interbreed with the parent population. 5. **Final Answer**: The process of species formation in which a segment of a population within the parent population becomes genetically isolated through polyploidy and is therefore unable to interbreed with the same is known as **sympatric speciation**. ---
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