Question

Diploid zygote is universal in which organisms

Answer 1

Fertilization between the haploid gametes forms a diploid zygote. The zygote will undergo many rounds of mitosis and give rise to a diploid multicellular plant called a sporophyte. ... The zygote undergoes mitosis to form a multicellular, diploid sporophyte, the frond-bearing structure that we usually think of as a fern.

Answer 2

Fertilization is the fusion of two haploid gametes to produce a diploid zygote. Each haploid gamete in humans has 23 chromosomes, while the diploid zygote has 46.