In fertilisation (in angiosperm), two types of fusion occur, i.e. syngamy and triple fusion, in the embryo sac. That is why it is called double fertilisation. Ploidy of cells involved in double fertilisation: Zygote is diploid (2n). It is formed as a result of syngamy, i.e. fusion of two haploid gametes (male gamete + egg). Primary endosperm nucleus (3n) is formed as a result of triple fusion, i.e. fusion of two haploid polar nuclei with male gamete
Why is fertilisation in an angiosperm referred to as double fertilisation? Mention the ploidy of the cells involved.
Answers
Sushant
In fertilisation (in angiosperm), two types of fusion occur, i.e. syngamy and triple fusion, in the embryo sac. That is why it is called double fertilisation.
Ploidy of cells involved in double fertilisation: Zygote is diploid (2n). It is formed as a result of syngamy, i.e. fusion of two haploid gametes (male gamete + egg). Primary endosperm nucleus (3n) is formed as a result of triple fusion, i.e. fusion of two haploid polar nuclei with male gamete