Continous variation is attributed to

Mutation

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Crossing over

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Chromosomal aberration

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Polyploidy

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Solution

The correct option is B Crossing over
Chromosomal crossover is the exchange of genetic material between homologous chromosomes that results in recombinant chromosomes that results in recombinant chromosomes. It is one of the final phases of genetic recombination, which occurs during prophase I of meiosis during a process called synapsis. Continuous variation is attributed to crossing over as it helps in the exchange of characters and new genes will be introduced into the gene pool.

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