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Biology · HSEXUAL REPRODUCTION IN FLOWERING PLANTS
हिन्दीDuring double fertilisation in angiosperms, what are the ploidy levels of the zygote and the primary endosperm nucleus (PEN), respectively?
Correct answer · Option 1
Diploid (\( 2n \)) and Triploid (\( 3n \))
Explanation
Syngamy involves fusion of one haploid male gamete with a haploid egg cell yielding a diploid zygote (\( 2n \)). Triple fusion involves fusion of one haploid male gamete with two polar nuclei yielding a triploid PEN (\( 3n \)).
