Question

the cell division involved in gametes formed is not of the same type in different organism

Answer 1

yes cell division is not same.
gametes are heploid.
heploid parent divide by mitotic division
diploid parent divide by meiosis division.

Answer 2

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In haploid organisms, gametes form by mitosis and diploid organisms do meiosis for the formation of gametes, in haploid organisms meiosis happens to maintain haplontic life cycle it does meiosis after fertilization. So gamete formation is not the same in a different organism.

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