Which of the following statement is INCORRECT?

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Q: 100 (SSC/NA)

Which of the following statement is INCORRECT?

question_subject: 

Science

question_exam: 

SSC

stats: 

0,9,5,2,3,0,9

keywords: 

{'asexual reproduction': [1, 0, 0, 0], 'fertilisation': [1, 0, 0, 0], 'external fertilisation': [1, 0, 0, 0], 'oviparous animal': [1, 0, 0, 0], 'sperm': [0, 0, 1, 0], 'birth': [11, 1, 4, 9], 'single cell': [1, 1, 0, 1], 'frog': [11, 1, 6, 0], 'incorrect': [2, 0, 0, 0], 'young ones': [2, 0, 2, 0]}

The incorrect statement among the provided options is option 4. The correct answer is option 4. Fertilisation is not necessary in asexual reproduction. Asexual reproduction is a type of reproduction where offspring are produced without the involvement of gametes or the fusion of genetic material from two parents. In asexual reproduction, a single parent organism can produce genetically identical offspring through various methods such as binary fission, budding, or fragmentation. Fertilisation, on the other hand, is the process of fusion of male and female gametes to produce offspring with genetic variation. Fertilisation is required in sexual reproduction, where two parents contribute genetic material to produce offspring. In asexual reproduction, only one parent is involved, and no fertilisation occurs. Therefore, option 4 is incorrect.