Question

What type of cell division is required for gamete formation?

Answer 1

hey the answer is
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Meiosis....... is the type of cell division required for gamete formation.

Generally same type of species have constant no. of chromosomes in their cells.We humans have 46 chromosomes in our cells, i.e., every human being and
every cell of us would have 46 no.of chromosomes.So if cell division happened,then the new cell would have 46chromosomes(in humans).This type of cell division is called Mitosis.

But in reproduction gametes fused to form zygote.If each gamete has 46 chromosomes,then the resultant zygote would have 92 of it.And if this process happens,then our no.chromosomes will increase in G.P like 92,184,368......
But this is not happening right now..and this present situation is only possible when the fusing gametes mixed up to give only 46 chromosomes.

So the gametes are forming with just 23 or one set of chromosomes(haploid).And it is not mitosis and so this processis called Meiosis.In this one cell will be divided in to four cells giving no.23 for each.This process happens only for gametes.

hope you can learn from me.................

Answer 2

${\underline{\bold{\red{Answer :-}}}}$

Meiosis is a special type of nuclear division which segregates one copy of each homologous chromosome into each new "gamete". Mitosis maintains the cell's original ploidy level (for example, one diploid 2n cell producing two diploid 2n cells; one haploid n cell producing two haploid n cells; etc.).

hope it will be helpful :)