The number of nuclei migrating from each of t | vedclass

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(A) In a typical $8$-nucleate embryo sac,there are four nuclei at the micropylar end and four nuclei at the chalazal end.One nucleus from the micropyl

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(A) In a typical $8$-nucleate embryo sac,there are four nuclei at the micropylar end and four nuclei at the chalazal end.One nucleus from the micropylar quartet and one nucleus from the chalazal quartet migrate to the centre of the embryo sac.These two nuclei are known as polar nuclei,which eventually fuse to form a single diploid secondary nucleus.

The number of nuclei migrating from each of the micropylar quartet and chalazal quartet to the centre of the normal embryo sac is

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