(a) Why is fertilisation in an angiosperm referred to as double to as double fertilisation?Mention the ploidy of the cells involved.
(b) Draw a neat labelled sketch of L.S. of an endospermous monocot seed.
(a) Fertilisation of haploid egg cell by one haploid ,male gamete, to form diploid zygote, is called syngamy.
Fertilisation of two(diploid) polar nuclei by the other haploid male gamete, to form triploid primary endosperm nucleus, is called triple fusion.
(b)