Why must gametophyte cells divide by mitosis

Haploid spores grows by mitosis and develops into gametophytes. In plants, there’s a little break between meiosis and the production of sperm and eggs. During that break, a separate little haploid plant grows.

In plants, meiosis occurs to produce the gametophyte. The gametophyte is already haploid, so it produces sperm and egg by mitosis.

So in other words it is important.

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1.the evidene of the reaction

2.yes

3.yes