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Why are polar bodies formed during oogen...

Why are polar bodies formed during oogenesis, but not in spermatogenesis?

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Polar bodies are formed during maturation phase of oogenesis. Two small polar bodies are formed during I and II meiotic divisions. Due to unequal cytokinesis, the cytoplasmic content of polar bodies is negligible as compared to ovum. They help to get rid of haploid set of chromosomes during oogenesis. But, during spermatogenesis equal cytokinesis occurs thus, polar bodies are not formed in this.
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