What will be the ploidy of endosperms, in angiosperms, if a tetraploid female plant is crossed with octaploid male?

3 x

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6 x

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5 x

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8 x

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Solution

The correct option is D 8 x
An octaploid male plant will have tetraploid (4x) male gamete. For a 4x female, haploid number is 2x. In it's embryo sac, the two polar nuclei (2x, 2x) will fuse with the male gamete (4n) and form an 8x endosperm
So, the correct answer is '8 x'

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If a male angiosperm plant is diploid and its female plant tetraploid, the ploidy level of endosperm will be

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