GS PrelimsScience and TechnologyGeneral Science2005

Assertion (A): Amoeba is reproduced by fission. Reason (R): All unicellular organisms are reproduced by asexual methods.

A

Both (A) and (R) are individually true and R is the correct explanation of A

B

Both (A) and (R) are individually true and R is not the correct explanation of A

C

A is true but R is false

D

A is false but R is true

Correct Answer: Option C

Explanation

1. Assertion (A) is true. Amoeba, a unicellular organism, primarily reproduces asexually through binary fission, where the parent cell divides into two daughter cells. 2. Reason (R) is false. While many unicellular organisms reproduce primarily by asexual methods (like fission, budding), some can also reproduce sexually (e.g., Paramecium through conjugation, yeast through sexual spores under certain conditions). Therefore, it's not true that *all* unicellular organisms reproduce *only* by asexual methods. 3. Since A is true and R is false, the correct option is (C).

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