Question:
Assertion (A): Fusion of two mature protozoans (which act as gamets) is known as hologamy.
Reason (R): Temporary union of two senile ciliates for the exchange of nuclear material is called amphimixis.
Assertion (A): Fusion of two mature protozoans (which act as gamets) is known as hologamy.
Reason (R): Temporary union of two senile ciliates for the exchange of nuclear material is called amphimixis.
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Hologamy = Fusion of mature cells; Conjugation = Exchange of genetic material (like in Paramecium).
Updated On: Jun 10, 2026
- Both (A) and (R) are true. (R) is the correct explanation for (A)
- Both (A) and (R) are true. (R) is not the correct explanation for (A)
- (A) is true. But (R) is false
- (A) is false. But (R) is true
Show Solution
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The Correct Option is C
Solution and Explanation
Step 1: Concept
Reproductive mechanisms in protozoa.
Step 2: Analysis
Assertion (A) is true: Hologamy refers to the fusion of two mature individuals acting as gametes. Reason (R) is false: The temporary union of ciliates for nuclear material exchange is called "conjugation," not amphimixis.
Step 3: Conclusion
Only the assertion is correct.
Final Answer: (C)
Reproductive mechanisms in protozoa.
Step 2: Analysis
Assertion (A) is true: Hologamy refers to the fusion of two mature individuals acting as gametes. Reason (R) is false: The temporary union of ciliates for nuclear material exchange is called "conjugation," not amphimixis.
Step 3: Conclusion
Only the assertion is correct.
Final Answer: (C)
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