Endosperm of a Gymnosperm is Haploid(i.e. n ,single set of chromosome) whereas that of a Angiosperm is triploid (i.e 3n,3 set of chromosomes)...

Endosperm of Gymnosperm

Introduction
Gymnosperms are a group of seed-producing plants that include conifers, cycads, Ginkgo, and Gnetales. The endosperm is a tissue that is found in the seeds of angiosperms and gymnosperms. It is the tissue that provides nutrients to the developing embryo.

Answer
The endosperm of gymnosperms is haploid. The haploid endosperm is formed by the fusion of a haploid male gamete and a haploid female gamete. This process is called double fertilization. In gymnosperms, unlike in angiosperms, the endosperm is not formed until after fertilization.

Explanation
The endosperm of gymnosperms is haploid because it is formed by the fusion of a haploid male gamete and a haploid female gamete. In gymnosperms, the male gamete is contained within a pollen grain. When the pollen grain lands on the female cone, it germinates and produces a pollen tube. The pollen tube grows towards the egg cell, which is located within the ovule. When the pollen tube reaches the egg cell, the two cells fuse, resulting in the formation of a diploid zygote. In addition to the zygote, a second haploid nucleus is also formed during fertilization. This haploid nucleus then divides to produce the haploid endosperm.

Conclusion
In conclusion, the endosperm of gymnosperms is haploid. It is formed by the fusion of a haploid male gamete and a haploid female gamete. The endosperm provides nutrients to the developing embryo and is an important component of gymnosperm seeds.