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Solution


Q.

Study the following diagram showing various stages of binary fission in Amoeba, the correct sequence of these diagrams should be:
1 I,IV, III, II, V  
2 III, I, IV, II, V  
3 I, II, IV, III, V  
4 I, III, IV, II, V  

Ans.

(4)

Asexual reproduction is a process of reproducing the offspring through simple division of cells, this type of reproduction is observed in single cell organisms, it does not undergo fusion of gametes, therefore, the offspring produced by asexual reproduction are genetically identical. The asexual reproduction is further divided into; binary fission, budding, fragmentation, and sporogenesis.

The binary fission is an asexual reproduction observed in amoeba. After the replication process through mitotic division, the amoeba cell divides into two equal halves and these are considered as the daughter cells. In this process, the daughters cells thus produced through cell division are identical to each other.

The amoebas that are about to divide grow eventually larger, the nucleus gets extended and divides into two. The nuclear division is followed by the cytoplasmic division. Therefore, two amoebas are produced from a single amoeba.