The two end products of double fertilisation in angiosperms are diploid zygote and a triploid primary endosperm nucleus.
Diploid zygote is formed by fusion of haploid gametes, i.e. male gamete and egg, while another male gamete and two polar nuclei of central cell fuses to form triploid primary endosperm nucleus. During the development of seed, the zygote undergoes mitotic divisions to form a mature embryo while, the primary endosperm cell gives rise to nutritive tissue called endosperm, which provides nourishment to growing embryo.
Name two end products of double fertilisation in angiosperms. How are they formed? Write their fate during the development of seed.
Answers
Kishore..
The two end products of double fertilisation in angiosperms are diploid zygote and a triploid primary endosperm nucleus.
Diploid zygote is formed by fusion of haploid gametes, i.e. male gamete and egg, while another male gamete and two polar nuclei of central cell fuses to form triploid primary endosperm nucleus. During the development of seed, the zygote undergoes mitotic divisions to form a mature embryo while, the primary endosperm cell gives rise to nutritive tissue called endosperm, which provides nourishment to growing embryo.