Directions: In the following questions, a statement of assertion (A) ...
Plasmodium reproduces asexually by multiple fission.
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Directions: In the following questions, a statement of assertion (A) ...
Assertion (A): Plasmodium reproduces by multiple fission.
Reason (R): Multiple fission is a type of asexual reproduction.
The correct answer is option B, which states that both the assertion and reason are true, but the reason is not the correct explanation of the assertion.
Explanation:
Assertion (A): Plasmodium reproduces by multiple fission.
Plasmodium is a parasitic protozoan that causes malaria. It belongs to the phylum Apicomplexa and reproduces through a process called multiple fission. Multiple fission involves the division of the nucleus into multiple daughter nuclei, followed by the division of the cytoplasm to form multiple daughter cells. In the case of Plasmodium, this process results in the formation of multiple merozoites, which are infective forms of the parasite.
Reason (R): Multiple fission is a type of asexual reproduction.
Multiple fission is indeed a type of asexual reproduction. Asexual reproduction is the process by which offspring are produced without the involvement of gametes or the fusion of gametes. In multiple fission, a single parent organism divides into multiple daughter cells, each of which is capable of independent existence and can develop into a new organism. This process is commonly observed in unicellular organisms like bacteria, protozoa, and some algae.
Correct explanation:
The reason provided in the question correctly states that multiple fission is a type of asexual reproduction. However, it does not explain why Plasmodium specifically uses multiple fission as its mode of reproduction. Plasmodium reproduces through multiple fission as a means of increasing its population within the host organism and spreading the infection. It allows the parasite to rapidly produce large numbers of merozoites, which can then infect new host cells and continue the life cycle of the parasite.
In conclusion, both the assertion and reason are true, but the reason does not provide a complete or accurate explanation for why Plasmodium specifically uses multiple fission as its mode of reproduction.
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