If the diploid chromosome number of typical angiosperm is 36 , what would be the chromosome number in its endosperm ?

Step-by-step solution

The diploid chromosome number of the angiosperm is given as 2n = 36 . The haploid chromosome number is n = 36 2 = 18 . In typical angiosperms, the endosperm is formed by the process of triple fusion, where one haploid male gamete fuses with the diploid secondary nucleus (formed by two haploid polar nuclei). Therefore, the ploidy level of the endosperm is triploid ( 3n ). The chromosome number in the endosperm will be 3n = 3 18 = 54 .